// Generated by the protocol buffer compiler.  DO NOT EDIT!
// source: google/cloud/dataproc/v1/workflow_templates.proto

package com.google.cloud.dataproc.v1;

/**
 *
 *
 * <pre>
 * A configurable parameter that replaces one or more fields in the template.
 * Parameterizable fields:
 * - Labels
 * - File uris
 * - Job properties
 * - Job arguments
 * - Script variables
 * - Main class (in HadoopJob and SparkJob)
 * - Zone (in ClusterSelector)
 * </pre>
 *
 * Protobuf type {@code google.cloud.dataproc.v1.TemplateParameter}
 */
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  /**
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   *
   * <pre>
   * Required. Paths to all fields that the parameter replaces.
   * A field is allowed to appear in at most one parameter's list of field
   * paths.
   * A field path is similar in syntax to a
   * [google.protobuf.FieldMask][google.protobuf.FieldMask]. For example, a
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   * selector would be specified as `placement.clusterSelector.zone`.
   * Also, field paths can reference fields using the following syntax:
   * * Values in maps can be referenced by key:
   *     * labels['key']
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   *     * placement.managedCluster.labels['key']
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   *     * jobs['step-id'].labels['key']
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   *     * jobs['step-id'].hiveJob.queryFileUri
   *     * jobs['step-id'].pySparkJob.mainPythonFileUri
   *     * jobs['step-id'].hadoopJob.jarFileUris[0]
   *     * jobs['step-id'].hadoopJob.archiveUris[0]
   *     * jobs['step-id'].hadoopJob.fileUris[0]
   *     * jobs['step-id'].pySparkJob.pythonFileUris[0]
   * * Items in repeated fields can be referenced by a zero-based index:
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   *     * jobs['step-id'].hiveJob.scriptVariables['key']
   *     * jobs['step-id'].hadoopJob.mainJarFileUri
   *     * placement.clusterSelector.zone
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   * entirety since only individual map values and individual items in repeated
   * fields can be referenced. For example, the following field paths are
   * invalid:
   * - placement.clusterSelector.clusterLabels
   * - jobs['step-id'].sparkJob.args
   * </pre>
   *
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   *
   *
   * <pre>
   * Required. Paths to all fields that the parameter replaces.
   * A field is allowed to appear in at most one parameter's list of field
   * paths.
   * A field path is similar in syntax to a
   * [google.protobuf.FieldMask][google.protobuf.FieldMask]. For example, a
   * field path that references the zone field of a workflow template's cluster
   * selector would be specified as `placement.clusterSelector.zone`.
   * Also, field paths can reference fields using the following syntax:
   * * Values in maps can be referenced by key:
   *     * labels['key']
   *     * placement.clusterSelector.clusterLabels['key']
   *     * placement.managedCluster.labels['key']
   *     * placement.clusterSelector.clusterLabels['key']
   *     * jobs['step-id'].labels['key']
   * * Jobs in the jobs list can be referenced by step-id:
   *     * jobs['step-id'].hadoopJob.mainJarFileUri
   *     * jobs['step-id'].hiveJob.queryFileUri
   *     * jobs['step-id'].pySparkJob.mainPythonFileUri
   *     * jobs['step-id'].hadoopJob.jarFileUris[0]
   *     * jobs['step-id'].hadoopJob.archiveUris[0]
   *     * jobs['step-id'].hadoopJob.fileUris[0]
   *     * jobs['step-id'].pySparkJob.pythonFileUris[0]
   * * Items in repeated fields can be referenced by a zero-based index:
   *     * jobs['step-id'].sparkJob.args[0]
   * * Other examples:
   *     * jobs['step-id'].hadoopJob.properties['key']
   *     * jobs['step-id'].hadoopJob.args[0]
   *     * jobs['step-id'].hiveJob.scriptVariables['key']
   *     * jobs['step-id'].hadoopJob.mainJarFileUri
   *     * placement.clusterSelector.zone
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   * entirety since only individual map values and individual items in repeated
   * fields can be referenced. For example, the following field paths are
   * invalid:
   * - placement.clusterSelector.clusterLabels
   * - jobs['step-id'].sparkJob.args
   * </pre>
   *
   * <code>repeated string fields = 2;</code>
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   *
   *
   * <pre>
   * Required. Paths to all fields that the parameter replaces.
   * A field is allowed to appear in at most one parameter's list of field
   * paths.
   * A field path is similar in syntax to a
   * [google.protobuf.FieldMask][google.protobuf.FieldMask]. For example, a
   * field path that references the zone field of a workflow template's cluster
   * selector would be specified as `placement.clusterSelector.zone`.
   * Also, field paths can reference fields using the following syntax:
   * * Values in maps can be referenced by key:
   *     * labels['key']
   *     * placement.clusterSelector.clusterLabels['key']
   *     * placement.managedCluster.labels['key']
   *     * placement.clusterSelector.clusterLabels['key']
   *     * jobs['step-id'].labels['key']
   * * Jobs in the jobs list can be referenced by step-id:
   *     * jobs['step-id'].hadoopJob.mainJarFileUri
   *     * jobs['step-id'].hiveJob.queryFileUri
   *     * jobs['step-id'].pySparkJob.mainPythonFileUri
   *     * jobs['step-id'].hadoopJob.jarFileUris[0]
   *     * jobs['step-id'].hadoopJob.archiveUris[0]
   *     * jobs['step-id'].hadoopJob.fileUris[0]
   *     * jobs['step-id'].pySparkJob.pythonFileUris[0]
   * * Items in repeated fields can be referenced by a zero-based index:
   *     * jobs['step-id'].sparkJob.args[0]
   * * Other examples:
   *     * jobs['step-id'].hadoopJob.properties['key']
   *     * jobs['step-id'].hadoopJob.args[0]
   *     * jobs['step-id'].hiveJob.scriptVariables['key']
   *     * jobs['step-id'].hadoopJob.mainJarFileUri
   *     * placement.clusterSelector.zone
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   * entirety since only individual map values and individual items in repeated
   * fields can be referenced. For example, the following field paths are
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   * - placement.clusterSelector.clusterLabels
   * - jobs['step-id'].sparkJob.args
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   *
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   *
   * <pre>
   * Required. Paths to all fields that the parameter replaces.
   * A field is allowed to appear in at most one parameter's list of field
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   * A field path is similar in syntax to a
   * [google.protobuf.FieldMask][google.protobuf.FieldMask]. For example, a
   * field path that references the zone field of a workflow template's cluster
   * selector would be specified as `placement.clusterSelector.zone`.
   * Also, field paths can reference fields using the following syntax:
   * * Values in maps can be referenced by key:
   *     * labels['key']
   *     * placement.clusterSelector.clusterLabels['key']
   *     * placement.managedCluster.labels['key']
   *     * placement.clusterSelector.clusterLabels['key']
   *     * jobs['step-id'].labels['key']
   * * Jobs in the jobs list can be referenced by step-id:
   *     * jobs['step-id'].hadoopJob.mainJarFileUri
   *     * jobs['step-id'].hiveJob.queryFileUri
   *     * jobs['step-id'].pySparkJob.mainPythonFileUri
   *     * jobs['step-id'].hadoopJob.jarFileUris[0]
   *     * jobs['step-id'].hadoopJob.archiveUris[0]
   *     * jobs['step-id'].hadoopJob.fileUris[0]
   *     * jobs['step-id'].pySparkJob.pythonFileUris[0]
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   *     * jobs['step-id'].sparkJob.args[0]
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   *     * jobs['step-id'].hadoopJob.properties['key']
   *     * jobs['step-id'].hadoopJob.args[0]
   *     * jobs['step-id'].hiveJob.scriptVariables['key']
   *     * jobs['step-id'].hadoopJob.mainJarFileUri
   *     * placement.clusterSelector.zone
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   * fields can be referenced. For example, the following field paths are
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   * - placement.clusterSelector.clusterLabels
   * - jobs['step-id'].sparkJob.args
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   *
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   * Optional. Brief description of the parameter.
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  /**
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   *
   * <pre>
   * A configurable parameter that replaces one or more fields in the template.
   * Parameterizable fields:
   * - Labels
   * - File uris
   * - Job properties
   * - Job arguments
   * - Script variables
   * - Main class (in HadoopJob and SparkJob)
   * - Zone (in ClusterSelector)
   * </pre>
   *
   * Protobuf type {@code google.cloud.dataproc.v1.TemplateParameter}
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     * The name must contain only capital letters (A-Z), numbers (0-9), and
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     * The name must contain only capital letters (A-Z), numbers (0-9), and
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     *
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     * Required.  Parameter name.
     * The parameter name is used as the key, and paired with the
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     * is instantiated.
     * The name must contain only capital letters (A-Z), numbers (0-9), and
     * underscores (_), and must not start with a number. The maximum length is
     * 40 characters.
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     *
     * <code>string name = 1;</code>
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     *
     * <pre>
     * Required.  Parameter name.
     * The parameter name is used as the key, and paired with the
     * parameter value, which are passed to the template when the template
     * is instantiated.
     * The name must contain only capital letters (A-Z), numbers (0-9), and
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     * 40 characters.
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     *
     * <code>string name = 1;</code>
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     *
     *
     * <pre>
     * Required.  Parameter name.
     * The parameter name is used as the key, and paired with the
     * parameter value, which are passed to the template when the template
     * is instantiated.
     * The name must contain only capital letters (A-Z), numbers (0-9), and
     * underscores (_), and must not start with a number. The maximum length is
     * 40 characters.
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    /**
     *
     *
     * <pre>
     * Required. Paths to all fields that the parameter replaces.
     * A field is allowed to appear in at most one parameter's list of field
     * paths.
     * A field path is similar in syntax to a
     * [google.protobuf.FieldMask][google.protobuf.FieldMask]. For example, a
     * field path that references the zone field of a workflow template's cluster
     * selector would be specified as `placement.clusterSelector.zone`.
     * Also, field paths can reference fields using the following syntax:
     * * Values in maps can be referenced by key:
     *     * labels['key']
     *     * placement.clusterSelector.clusterLabels['key']
     *     * placement.managedCluster.labels['key']
     *     * placement.clusterSelector.clusterLabels['key']
     *     * jobs['step-id'].labels['key']
     * * Jobs in the jobs list can be referenced by step-id:
     *     * jobs['step-id'].hadoopJob.mainJarFileUri
     *     * jobs['step-id'].hiveJob.queryFileUri
     *     * jobs['step-id'].pySparkJob.mainPythonFileUri
     *     * jobs['step-id'].hadoopJob.jarFileUris[0]
     *     * jobs['step-id'].hadoopJob.archiveUris[0]
     *     * jobs['step-id'].hadoopJob.fileUris[0]
     *     * jobs['step-id'].pySparkJob.pythonFileUris[0]
     * * Items in repeated fields can be referenced by a zero-based index:
     *     * jobs['step-id'].sparkJob.args[0]
     * * Other examples:
     *     * jobs['step-id'].hadoopJob.properties['key']
     *     * jobs['step-id'].hadoopJob.args[0]
     *     * jobs['step-id'].hiveJob.scriptVariables['key']
     *     * jobs['step-id'].hadoopJob.mainJarFileUri
     *     * placement.clusterSelector.zone
     * It may not be possible to parameterize maps and repeated fields in their
     * entirety since only individual map values and individual items in repeated
     * fields can be referenced. For example, the following field paths are
     * invalid:
     * - placement.clusterSelector.clusterLabels
     * - jobs['step-id'].sparkJob.args
     * </pre>
     *
     * <code>repeated string fields = 2;</code>
     */
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    /**
     *
     *
     * <pre>
     * Required. Paths to all fields that the parameter replaces.
     * A field is allowed to appear in at most one parameter's list of field
     * paths.
     * A field path is similar in syntax to a
     * [google.protobuf.FieldMask][google.protobuf.FieldMask]. For example, a
     * field path that references the zone field of a workflow template's cluster
     * selector would be specified as `placement.clusterSelector.zone`.
     * Also, field paths can reference fields using the following syntax:
     * * Values in maps can be referenced by key:
     *     * labels['key']
     *     * placement.clusterSelector.clusterLabels['key']
     *     * placement.managedCluster.labels['key']
     *     * placement.clusterSelector.clusterLabels['key']
     *     * jobs['step-id'].labels['key']
     * * Jobs in the jobs list can be referenced by step-id:
     *     * jobs['step-id'].hadoopJob.mainJarFileUri
     *     * jobs['step-id'].hiveJob.queryFileUri
     *     * jobs['step-id'].pySparkJob.mainPythonFileUri
     *     * jobs['step-id'].hadoopJob.jarFileUris[0]
     *     * jobs['step-id'].hadoopJob.archiveUris[0]
     *     * jobs['step-id'].hadoopJob.fileUris[0]
     *     * jobs['step-id'].pySparkJob.pythonFileUris[0]
     * * Items in repeated fields can be referenced by a zero-based index:
     *     * jobs['step-id'].sparkJob.args[0]
     * * Other examples:
     *     * jobs['step-id'].hadoopJob.properties['key']
     *     * jobs['step-id'].hadoopJob.args[0]
     *     * jobs['step-id'].hiveJob.scriptVariables['key']
     *     * jobs['step-id'].hadoopJob.mainJarFileUri
     *     * placement.clusterSelector.zone
     * It may not be possible to parameterize maps and repeated fields in their
     * entirety since only individual map values and individual items in repeated
     * fields can be referenced. For example, the following field paths are
     * invalid:
     * - placement.clusterSelector.clusterLabels
     * - jobs['step-id'].sparkJob.args
     * </pre>
     *
     * <code>repeated string fields = 2;</code>
     */
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    /**
     *
     *
     * <pre>
     * Required. Paths to all fields that the parameter replaces.
     * A field is allowed to appear in at most one parameter's list of field
     * paths.
     * A field path is similar in syntax to a
     * [google.protobuf.FieldMask][google.protobuf.FieldMask]. For example, a
     * field path that references the zone field of a workflow template's cluster
     * selector would be specified as `placement.clusterSelector.zone`.
     * Also, field paths can reference fields using the following syntax:
     * * Values in maps can be referenced by key:
     *     * labels['key']
     *     * placement.clusterSelector.clusterLabels['key']
     *     * placement.managedCluster.labels['key']
     *     * placement.clusterSelector.clusterLabels['key']
     *     * jobs['step-id'].labels['key']
     * * Jobs in the jobs list can be referenced by step-id:
     *     * jobs['step-id'].hadoopJob.mainJarFileUri
     *     * jobs['step-id'].hiveJob.queryFileUri
     *     * jobs['step-id'].pySparkJob.mainPythonFileUri
     *     * jobs['step-id'].hadoopJob.jarFileUris[0]
     *     * jobs['step-id'].hadoopJob.archiveUris[0]
     *     * jobs['step-id'].hadoopJob.fileUris[0]
     *     * jobs['step-id'].pySparkJob.pythonFileUris[0]
     * * Items in repeated fields can be referenced by a zero-based index:
     *     * jobs['step-id'].sparkJob.args[0]
     * * Other examples:
     *     * jobs['step-id'].hadoopJob.properties['key']
     *     * jobs['step-id'].hadoopJob.args[0]
     *     * jobs['step-id'].hiveJob.scriptVariables['key']
     *     * jobs['step-id'].hadoopJob.mainJarFileUri
     *     * placement.clusterSelector.zone
     * It may not be possible to parameterize maps and repeated fields in their
     * entirety since only individual map values and individual items in repeated
     * fields can be referenced. For example, the following field paths are
     * invalid:
     * - placement.clusterSelector.clusterLabels
     * - jobs['step-id'].sparkJob.args
     * </pre>
     *
     * <code>repeated string fields = 2;</code>
     */
    public java.lang.String getFields(int index) {
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    /**
     *
     *
     * <pre>
     * Required. Paths to all fields that the parameter replaces.
     * A field is allowed to appear in at most one parameter's list of field
     * paths.
     * A field path is similar in syntax to a
     * [google.protobuf.FieldMask][google.protobuf.FieldMask]. For example, a
     * field path that references the zone field of a workflow template's cluster
     * selector would be specified as `placement.clusterSelector.zone`.
     * Also, field paths can reference fields using the following syntax:
     * * Values in maps can be referenced by key:
     *     * labels['key']
     *     * placement.clusterSelector.clusterLabels['key']
     *     * placement.managedCluster.labels['key']
     *     * placement.clusterSelector.clusterLabels['key']
     *     * jobs['step-id'].labels['key']
     * * Jobs in the jobs list can be referenced by step-id:
     *     * jobs['step-id'].hadoopJob.mainJarFileUri
     *     * jobs['step-id'].hiveJob.queryFileUri
     *     * jobs['step-id'].pySparkJob.mainPythonFileUri
     *     * jobs['step-id'].hadoopJob.jarFileUris[0]
     *     * jobs['step-id'].hadoopJob.archiveUris[0]
     *     * jobs['step-id'].hadoopJob.fileUris[0]
     *     * jobs['step-id'].pySparkJob.pythonFileUris[0]
     * * Items in repeated fields can be referenced by a zero-based index:
     *     * jobs['step-id'].sparkJob.args[0]
     * * Other examples:
     *     * jobs['step-id'].hadoopJob.properties['key']
     *     * jobs['step-id'].hadoopJob.args[0]
     *     * jobs['step-id'].hiveJob.scriptVariables['key']
     *     * jobs['step-id'].hadoopJob.mainJarFileUri
     *     * placement.clusterSelector.zone
     * It may not be possible to parameterize maps and repeated fields in their
     * entirety since only individual map values and individual items in repeated
     * fields can be referenced. For example, the following field paths are
     * invalid:
     * - placement.clusterSelector.clusterLabels
     * - jobs['step-id'].sparkJob.args
     * </pre>
     *
     * <code>repeated string fields = 2;</code>
     */
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    /**
     *
     *
     * <pre>
     * Required. Paths to all fields that the parameter replaces.
     * A field is allowed to appear in at most one parameter's list of field
     * paths.
     * A field path is similar in syntax to a
     * [google.protobuf.FieldMask][google.protobuf.FieldMask]. For example, a
     * field path that references the zone field of a workflow template's cluster
     * selector would be specified as `placement.clusterSelector.zone`.
     * Also, field paths can reference fields using the following syntax:
     * * Values in maps can be referenced by key:
     *     * labels['key']
     *     * placement.clusterSelector.clusterLabels['key']
     *     * placement.managedCluster.labels['key']
     *     * placement.clusterSelector.clusterLabels['key']
     *     * jobs['step-id'].labels['key']
     * * Jobs in the jobs list can be referenced by step-id:
     *     * jobs['step-id'].hadoopJob.mainJarFileUri
     *     * jobs['step-id'].hiveJob.queryFileUri
     *     * jobs['step-id'].pySparkJob.mainPythonFileUri
     *     * jobs['step-id'].hadoopJob.jarFileUris[0]
     *     * jobs['step-id'].hadoopJob.archiveUris[0]
     *     * jobs['step-id'].hadoopJob.fileUris[0]
     *     * jobs['step-id'].pySparkJob.pythonFileUris[0]
     * * Items in repeated fields can be referenced by a zero-based index:
     *     * jobs['step-id'].sparkJob.args[0]
     * * Other examples:
     *     * jobs['step-id'].hadoopJob.properties['key']
     *     * jobs['step-id'].hadoopJob.args[0]
     *     * jobs['step-id'].hiveJob.scriptVariables['key']
     *     * jobs['step-id'].hadoopJob.mainJarFileUri
     *     * placement.clusterSelector.zone
     * It may not be possible to parameterize maps and repeated fields in their
     * entirety since only individual map values and individual items in repeated
     * fields can be referenced. For example, the following field paths are
     * invalid:
     * - placement.clusterSelector.clusterLabels
     * - jobs['step-id'].sparkJob.args
     * </pre>
     *
     * <code>repeated string fields = 2;</code>
     */
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    /**
     *
     *
     * <pre>
     * Required. Paths to all fields that the parameter replaces.
     * A field is allowed to appear in at most one parameter's list of field
     * paths.
     * A field path is similar in syntax to a
     * [google.protobuf.FieldMask][google.protobuf.FieldMask]. For example, a
     * field path that references the zone field of a workflow template's cluster
     * selector would be specified as `placement.clusterSelector.zone`.
     * Also, field paths can reference fields using the following syntax:
     * * Values in maps can be referenced by key:
     *     * labels['key']
     *     * placement.clusterSelector.clusterLabels['key']
     *     * placement.managedCluster.labels['key']
     *     * placement.clusterSelector.clusterLabels['key']
     *     * jobs['step-id'].labels['key']
     * * Jobs in the jobs list can be referenced by step-id:
     *     * jobs['step-id'].hadoopJob.mainJarFileUri
     *     * jobs['step-id'].hiveJob.queryFileUri
     *     * jobs['step-id'].pySparkJob.mainPythonFileUri
     *     * jobs['step-id'].hadoopJob.jarFileUris[0]
     *     * jobs['step-id'].hadoopJob.archiveUris[0]
     *     * jobs['step-id'].hadoopJob.fileUris[0]
     *     * jobs['step-id'].pySparkJob.pythonFileUris[0]
     * * Items in repeated fields can be referenced by a zero-based index:
     *     * jobs['step-id'].sparkJob.args[0]
     * * Other examples:
     *     * jobs['step-id'].hadoopJob.properties['key']
     *     * jobs['step-id'].hadoopJob.args[0]
     *     * jobs['step-id'].hiveJob.scriptVariables['key']
     *     * jobs['step-id'].hadoopJob.mainJarFileUri
     *     * placement.clusterSelector.zone
     * It may not be possible to parameterize maps and repeated fields in their
     * entirety since only individual map values and individual items in repeated
     * fields can be referenced. For example, the following field paths are
     * invalid:
     * - placement.clusterSelector.clusterLabels
     * - jobs['step-id'].sparkJob.args
     * </pre>
     *
     * <code>repeated string fields = 2;</code>
     */
    public Builder addFields(java.lang.String value) {
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      ensureFieldsIsMutable();
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      onChanged();
      return this;
    }
    /**
     *
     *
     * <pre>
     * Required. Paths to all fields that the parameter replaces.
     * A field is allowed to appear in at most one parameter's list of field
     * paths.
     * A field path is similar in syntax to a
     * [google.protobuf.FieldMask][google.protobuf.FieldMask]. For example, a
     * field path that references the zone field of a workflow template's cluster
     * selector would be specified as `placement.clusterSelector.zone`.
     * Also, field paths can reference fields using the following syntax:
     * * Values in maps can be referenced by key:
     *     * labels['key']
     *     * placement.clusterSelector.clusterLabels['key']
     *     * placement.managedCluster.labels['key']
     *     * placement.clusterSelector.clusterLabels['key']
     *     * jobs['step-id'].labels['key']
     * * Jobs in the jobs list can be referenced by step-id:
     *     * jobs['step-id'].hadoopJob.mainJarFileUri
     *     * jobs['step-id'].hiveJob.queryFileUri
     *     * jobs['step-id'].pySparkJob.mainPythonFileUri
     *     * jobs['step-id'].hadoopJob.jarFileUris[0]
     *     * jobs['step-id'].hadoopJob.archiveUris[0]
     *     * jobs['step-id'].hadoopJob.fileUris[0]
     *     * jobs['step-id'].pySparkJob.pythonFileUris[0]
     * * Items in repeated fields can be referenced by a zero-based index:
     *     * jobs['step-id'].sparkJob.args[0]
     * * Other examples:
     *     * jobs['step-id'].hadoopJob.properties['key']
     *     * jobs['step-id'].hadoopJob.args[0]
     *     * jobs['step-id'].hiveJob.scriptVariables['key']
     *     * jobs['step-id'].hadoopJob.mainJarFileUri
     *     * placement.clusterSelector.zone
     * It may not be possible to parameterize maps and repeated fields in their
     * entirety since only individual map values and individual items in repeated
     * fields can be referenced. For example, the following field paths are
     * invalid:
     * - placement.clusterSelector.clusterLabels
     * - jobs['step-id'].sparkJob.args
     * </pre>
     *
     * <code>repeated string fields = 2;</code>
     */
    public Builder addAllFields(java.lang.Iterable<java.lang.String> values) {
      ensureFieldsIsMutable();
      com.google.protobuf.AbstractMessageLite.Builder.addAll(values, fields_);
      onChanged();
      return this;
    }
    /**
     *
     *
     * <pre>
     * Required. Paths to all fields that the parameter replaces.
     * A field is allowed to appear in at most one parameter's list of field
     * paths.
     * A field path is similar in syntax to a
     * [google.protobuf.FieldMask][google.protobuf.FieldMask]. For example, a
     * field path that references the zone field of a workflow template's cluster
     * selector would be specified as `placement.clusterSelector.zone`.
     * Also, field paths can reference fields using the following syntax:
     * * Values in maps can be referenced by key:
     *     * labels['key']
     *     * placement.clusterSelector.clusterLabels['key']
     *     * placement.managedCluster.labels['key']
     *     * placement.clusterSelector.clusterLabels['key']
     *     * jobs['step-id'].labels['key']
     * * Jobs in the jobs list can be referenced by step-id:
     *     * jobs['step-id'].hadoopJob.mainJarFileUri
     *     * jobs['step-id'].hiveJob.queryFileUri
     *     * jobs['step-id'].pySparkJob.mainPythonFileUri
     *     * jobs['step-id'].hadoopJob.jarFileUris[0]
     *     * jobs['step-id'].hadoopJob.archiveUris[0]
     *     * jobs['step-id'].hadoopJob.fileUris[0]
     *     * jobs['step-id'].pySparkJob.pythonFileUris[0]
     * * Items in repeated fields can be referenced by a zero-based index:
     *     * jobs['step-id'].sparkJob.args[0]
     * * Other examples:
     *     * jobs['step-id'].hadoopJob.properties['key']
     *     * jobs['step-id'].hadoopJob.args[0]
     *     * jobs['step-id'].hiveJob.scriptVariables['key']
     *     * jobs['step-id'].hadoopJob.mainJarFileUri
     *     * placement.clusterSelector.zone
     * It may not be possible to parameterize maps and repeated fields in their
     * entirety since only individual map values and individual items in repeated
     * fields can be referenced. For example, the following field paths are
     * invalid:
     * - placement.clusterSelector.clusterLabels
     * - jobs['step-id'].sparkJob.args
     * </pre>
     *
     * <code>repeated string fields = 2;</code>
     */
    public Builder clearFields() {
      fields_ = com.google.protobuf.LazyStringArrayList.EMPTY;
      bitField0_ = (bitField0_ & ~0x00000002);
      onChanged();
      return this;
    }
    /**
     *
     *
     * <pre>
     * Required. Paths to all fields that the parameter replaces.
     * A field is allowed to appear in at most one parameter's list of field
     * paths.
     * A field path is similar in syntax to a
     * [google.protobuf.FieldMask][google.protobuf.FieldMask]. For example, a
     * field path that references the zone field of a workflow template's cluster
     * selector would be specified as `placement.clusterSelector.zone`.
     * Also, field paths can reference fields using the following syntax:
     * * Values in maps can be referenced by key:
     *     * labels['key']
     *     * placement.clusterSelector.clusterLabels['key']
     *     * placement.managedCluster.labels['key']
     *     * placement.clusterSelector.clusterLabels['key']
     *     * jobs['step-id'].labels['key']
     * * Jobs in the jobs list can be referenced by step-id:
     *     * jobs['step-id'].hadoopJob.mainJarFileUri
     *     * jobs['step-id'].hiveJob.queryFileUri
     *     * jobs['step-id'].pySparkJob.mainPythonFileUri
     *     * jobs['step-id'].hadoopJob.jarFileUris[0]
     *     * jobs['step-id'].hadoopJob.archiveUris[0]
     *     * jobs['step-id'].hadoopJob.fileUris[0]
     *     * jobs['step-id'].pySparkJob.pythonFileUris[0]
     * * Items in repeated fields can be referenced by a zero-based index:
     *     * jobs['step-id'].sparkJob.args[0]
     * * Other examples:
     *     * jobs['step-id'].hadoopJob.properties['key']
     *     * jobs['step-id'].hadoopJob.args[0]
     *     * jobs['step-id'].hiveJob.scriptVariables['key']
     *     * jobs['step-id'].hadoopJob.mainJarFileUri
     *     * placement.clusterSelector.zone
     * It may not be possible to parameterize maps and repeated fields in their
     * entirety since only individual map values and individual items in repeated
     * fields can be referenced. For example, the following field paths are
     * invalid:
     * - placement.clusterSelector.clusterLabels
     * - jobs['step-id'].sparkJob.args
     * </pre>
     *
     * <code>repeated string fields = 2;</code>
     */
    public Builder addFieldsBytes(com.google.protobuf.ByteString value) {
      if (value == null) {
        throw new NullPointerException();
      }
      checkByteStringIsUtf8(value);
      ensureFieldsIsMutable();
      fields_.add(value);
      onChanged();
      return this;
    }

    private java.lang.Object description_ = "";
    /**
     *
     *
     * <pre>
     * Optional. Brief description of the parameter.
     * Must not exceed 1024 characters.
     * </pre>
     *
     * <code>string description = 3;</code>
     */
    public java.lang.String getDescription() {
      java.lang.Object ref = description_;
      if (!(ref instanceof java.lang.String)) {
        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
        java.lang.String s = bs.toStringUtf8();
        description_ = s;
        return s;
      } else {
        return (java.lang.String) ref;
      }
    }
    /**
     *
     *
     * <pre>
     * Optional. Brief description of the parameter.
     * Must not exceed 1024 characters.
     * </pre>
     *
     * <code>string description = 3;</code>
     */
    public com.google.protobuf.ByteString getDescriptionBytes() {
      java.lang.Object ref = description_;
      if (ref instanceof String) {
        com.google.protobuf.ByteString b =
            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
        description_ = b;
        return b;
      } else {
        return (com.google.protobuf.ByteString) ref;
      }
    }
    /**
     *
     *
     * <pre>
     * Optional. Brief description of the parameter.
     * Must not exceed 1024 characters.
     * </pre>
     *
     * <code>string description = 3;</code>
     */
    public Builder setDescription(java.lang.String value) {
      if (value == null) {
        throw new NullPointerException();
      }

      description_ = value;
      onChanged();
      return this;
    }
    /**
     *
     *
     * <pre>
     * Optional. Brief description of the parameter.
     * Must not exceed 1024 characters.
     * </pre>
     *
     * <code>string description = 3;</code>
     */
    public Builder clearDescription() {

      description_ = getDefaultInstance().getDescription();
      onChanged();
      return this;
    }
    /**
     *
     *
     * <pre>
     * Optional. Brief description of the parameter.
     * Must not exceed 1024 characters.
     * </pre>
     *
     * <code>string description = 3;</code>
     */
    public Builder setDescriptionBytes(com.google.protobuf.ByteString value) {
      if (value == null) {
        throw new NullPointerException();
      }
      checkByteStringIsUtf8(value);

      description_ = value;
      onChanged();
      return this;
    }

    private com.google.cloud.dataproc.v1.ParameterValidation validation_;
    private com.google.protobuf.SingleFieldBuilderV3<
            com.google.cloud.dataproc.v1.ParameterValidation,
            com.google.cloud.dataproc.v1.ParameterValidation.Builder,
            com.google.cloud.dataproc.v1.ParameterValidationOrBuilder>
        validationBuilder_;
    /**
     *
     *
     * <pre>
     * Optional. Validation rules to be applied to this parameter's value.
     * </pre>
     *
     * <code>.google.cloud.dataproc.v1.ParameterValidation validation = 4;</code>
     */
    public boolean hasValidation() {
      return validationBuilder_ != null || validation_ != null;
    }
    /**
     *
     *
     * <pre>
     * Optional. Validation rules to be applied to this parameter's value.
     * </pre>
     *
     * <code>.google.cloud.dataproc.v1.ParameterValidation validation = 4;</code>
     */
    public com.google.cloud.dataproc.v1.ParameterValidation getValidation() {
      if (validationBuilder_ == null) {
        return validation_ == null
            ? com.google.cloud.dataproc.v1.ParameterValidation.getDefaultInstance()
            : validation_;
      } else {
        return validationBuilder_.getMessage();
      }
    }
    /**
     *
     *
     * <pre>
     * Optional. Validation rules to be applied to this parameter's value.
     * </pre>
     *
     * <code>.google.cloud.dataproc.v1.ParameterValidation validation = 4;</code>
     */
    public Builder setValidation(com.google.cloud.dataproc.v1.ParameterValidation value) {
      if (validationBuilder_ == null) {
        if (value == null) {
          throw new NullPointerException();
        }
        validation_ = value;
        onChanged();
      } else {
        validationBuilder_.setMessage(value);
      }

      return this;
    }
    /**
     *
     *
     * <pre>
     * Optional. Validation rules to be applied to this parameter's value.
     * </pre>
     *
     * <code>.google.cloud.dataproc.v1.ParameterValidation validation = 4;</code>
     */
    public Builder setValidation(
        com.google.cloud.dataproc.v1.ParameterValidation.Builder builderForValue) {
      if (validationBuilder_ == null) {
        validation_ = builderForValue.build();
        onChanged();
      } else {
        validationBuilder_.setMessage(builderForValue.build());
      }

      return this;
    }
    /**
     *
     *
     * <pre>
     * Optional. Validation rules to be applied to this parameter's value.
     * </pre>
     *
     * <code>.google.cloud.dataproc.v1.ParameterValidation validation = 4;</code>
     */
    public Builder mergeValidation(com.google.cloud.dataproc.v1.ParameterValidation value) {
      if (validationBuilder_ == null) {
        if (validation_ != null) {
          validation_ =
              com.google.cloud.dataproc.v1.ParameterValidation.newBuilder(validation_)
                  .mergeFrom(value)
                  .buildPartial();
        } else {
          validation_ = value;
        }
        onChanged();
      } else {
        validationBuilder_.mergeFrom(value);
      }

      return this;
    }
    /**
     *
     *
     * <pre>
     * Optional. Validation rules to be applied to this parameter's value.
     * </pre>
     *
     * <code>.google.cloud.dataproc.v1.ParameterValidation validation = 4;</code>
     */
    public Builder clearValidation() {
      if (validationBuilder_ == null) {
        validation_ = null;
        onChanged();
      } else {
        validation_ = null;
        validationBuilder_ = null;
      }

      return this;
    }
    /**
     *
     *
     * <pre>
     * Optional. Validation rules to be applied to this parameter's value.
     * </pre>
     *
     * <code>.google.cloud.dataproc.v1.ParameterValidation validation = 4;</code>
     */
    public com.google.cloud.dataproc.v1.ParameterValidation.Builder getValidationBuilder() {

      onChanged();
      return getValidationFieldBuilder().getBuilder();
    }
    /**
     *
     *
     * <pre>
     * Optional. Validation rules to be applied to this parameter's value.
     * </pre>
     *
     * <code>.google.cloud.dataproc.v1.ParameterValidation validation = 4;</code>
     */
    public com.google.cloud.dataproc.v1.ParameterValidationOrBuilder getValidationOrBuilder() {
      if (validationBuilder_ != null) {
        return validationBuilder_.getMessageOrBuilder();
      } else {
        return validation_ == null
            ? com.google.cloud.dataproc.v1.ParameterValidation.getDefaultInstance()
            : validation_;
      }
    }
    /**
     *
     *
     * <pre>
     * Optional. Validation rules to be applied to this parameter's value.
     * </pre>
     *
     * <code>.google.cloud.dataproc.v1.ParameterValidation validation = 4;</code>
     */
    private com.google.protobuf.SingleFieldBuilderV3<
            com.google.cloud.dataproc.v1.ParameterValidation,
            com.google.cloud.dataproc.v1.ParameterValidation.Builder,
            com.google.cloud.dataproc.v1.ParameterValidationOrBuilder>
        getValidationFieldBuilder() {
      if (validationBuilder_ == null) {
        validationBuilder_ =
            new com.google.protobuf.SingleFieldBuilderV3<
                com.google.cloud.dataproc.v1.ParameterValidation,
                com.google.cloud.dataproc.v1.ParameterValidation.Builder,
                com.google.cloud.dataproc.v1.ParameterValidationOrBuilder>(
                getValidation(), getParentForChildren(), isClean());
        validation_ = null;
      }
      return validationBuilder_;
    }

    @java.lang.Override
    public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
      return super.setUnknownFields(unknownFields);
    }

    @java.lang.Override
    public final Builder mergeUnknownFields(
        final com.google.protobuf.UnknownFieldSet unknownFields) {
      return super.mergeUnknownFields(unknownFields);
    }

    // @@protoc_insertion_point(builder_scope:google.cloud.dataproc.v1.TemplateParameter)
  }

  // @@protoc_insertion_point(class_scope:google.cloud.dataproc.v1.TemplateParameter)
  private static final com.google.cloud.dataproc.v1.TemplateParameter DEFAULT_INSTANCE;

  static {
    DEFAULT_INSTANCE = new com.google.cloud.dataproc.v1.TemplateParameter();
  }

  public static com.google.cloud.dataproc.v1.TemplateParameter getDefaultInstance() {
    return DEFAULT_INSTANCE;
  }

  private static final com.google.protobuf.Parser<TemplateParameter> PARSER =
      new com.google.protobuf.AbstractParser<TemplateParameter>() {
        @java.lang.Override
        public TemplateParameter parsePartialFrom(
            com.google.protobuf.CodedInputStream input,
            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
            throws com.google.protobuf.InvalidProtocolBufferException {
          return new TemplateParameter(input, extensionRegistry);
        }
      };

  public static com.google.protobuf.Parser<TemplateParameter> parser() {
    return PARSER;
  }

  @java.lang.Override
  public com.google.protobuf.Parser<TemplateParameter> getParserForType() {
    return PARSER;
  }

  @java.lang.Override
  public com.google.cloud.dataproc.v1.TemplateParameter getDefaultInstanceForType() {
    return DEFAULT_INSTANCE;
  }
}
