# Cloud Identity API . groups . memberships

## Instance Methods

Creates a `Membership`.

Deletes a `Membership`.

Retrieves a `Membership`.

Lists the `Membership`s within a `Group`.

Retrieves the next page of results.

Looks up the [resource

Modifies the `MembershipRole`s of a `Membership`.

### Method Details

`create(parent, body=None, x__xgafv=None)`

    Creates a `Membership`.

    Args:
      parent: string, Required. The parent `Group` resource under which to create the `Membership`.

    Must be of the form `groups/{group_id}`. (required)
      body: object, The request body.
        The object takes the form of:

    { # A membership within the Cloud Identity Groups API.
        #
        # A `Membership` defines a relationship between a `Group` and an entity
        # belonging to that `Group`, referred to as a "member".
      "preferredMemberKey": { # A unique identifier for an entity in the Cloud Identity Groups API. # Required. Immutable. The `EntityKey` of the member.
          #
          # Either `member_key` or `preferred_member_key` must be set when calling
          # MembershipsService.CreateMembership but not both; both shall be set
          # when returned.
          #
          # An entity can represent either a group with an optional `namespace` or a user
          # without a `namespace`. The combination of `id` and `namespace` must be
          # unique; however, the same `id` can be used with different `namespace`s.
        "id": "A String", # The ID of the entity.
            #
            # For Google-managed entities, the `id` must be the email address of an
            # existing group or user.
            #
            # For external-identity-mapped entities, the `id` must be a string conforming
            # to the Identity Source's requirements.
            #
            # Must be unique within a `namespace`.
        "namespace": "A String", # The namespace in which the entity exists.
            #
            # If not specified, the `EntityKey` represents a Google-managed entity such
            # as a Google user or a Google Group.
            #
            # If specified, the `EntityKey` represents an external-identity-mapped group.
            # The namespace must correspond to an identity source created in Admin
            # Console and must be in the form of `identitysources/{identity_source_id}.
      },
      "createTime": "A String", # Output only. The time when the `Membership` was created.
      "name": "A String", # Output only. The [resource name](https://cloud.google.com/apis/design/resource_names) of
          # the `Membership`.
          #
          # Shall be of the form `groups/{group_id}/memberships/{membership_id}`.
      "type": "A String", # Output only. The type of the membership.
      "memberKey": { # A unique identifier for an entity in the Cloud Identity Groups API. # Immutable. The `EntityKey` of the member.
          #
          # Either `member_key` or `preferred_member_key` must be set when calling
          # MembershipsService.CreateMembership but not both; both shall be set
          # when returned.
          #
          # An entity can represent either a group with an optional `namespace` or a user
          # without a `namespace`. The combination of `id` and `namespace` must be
          # unique; however, the same `id` can be used with different `namespace`s.
        "id": "A String", # The ID of the entity.
            #
            # For Google-managed entities, the `id` must be the email address of an
            # existing group or user.
            #
            # For external-identity-mapped entities, the `id` must be a string conforming
            # to the Identity Source's requirements.
            #
            # Must be unique within a `namespace`.
        "namespace": "A String", # The namespace in which the entity exists.
            #
            # If not specified, the `EntityKey` represents a Google-managed entity such
            # as a Google user or a Google Group.
            #
            # If specified, the `EntityKey` represents an external-identity-mapped group.
            # The namespace must correspond to an identity source created in Admin
            # Console and must be in the form of `identitysources/{identity_source_id}.
      },
      "roles": [ # The `MembershipRole`s that apply to the `Membership`.
          #
          # If unspecified, defaults to a single `MembershipRole` with `name` `MEMBER`.
          #
          # Must not contain duplicate `MembershipRole`s with the same `name`.
        { # A membership role within the Cloud Identity Groups API.
            #
            # A `MembershipRole` defines the privileges granted to a `Membership`.
          "expiryDetail": { # The `MembershipRole` expiry details. # The expiry details of the `MembershipRole`.
              #
              # Expiry details are only supported for `MEMBER` `MembershipRoles`.
              #
              # May be set if `name` is `MEMBER`. Must not be set if `name` is any other
              # value.
            "expireTime": "A String", # The time at which the `MembershipRole` will expire.
          },
          "name": "A String", # The name of the `MembershipRole`.
              #
              # Must be one of `OWNER`, `MANAGER`, `MEMBER`.
        },
      ],
      "updateTime": "A String", # Output only. The time when the `Membership` was last updated.
    }

      x__xgafv: string, V1 error format.
        Allowed values
          1 - v1 error format
          2 - v2 error format

    Returns:
      An object of the form:

        { # This resource represents a long-running operation that is the result of a
          # network API call.
        "name": "A String", # The server-assigned name, which is only unique within the same service that
            # originally returns it. If you use the default HTTP mapping, the
            # `name` should be a resource name ending with `operations/{unique_id}`.
        "error": { # The `Status` type defines a logical error model that is suitable for # The error result of the operation in case of failure or cancellation.
            # different programming environments, including REST APIs and RPC APIs. It is
            # used by [gRPC](https://github.com/grpc). Each `Status` message contains
            # three pieces of data: error code, error message, and error details.
            #
            # You can find out more about this error model and how to work with it in the
            # [API Design Guide](https://cloud.google.com/apis/design/errors).
          "code": 42, # The status code, which should be an enum value of google.rpc.Code.
          "details": [ # A list of messages that carry the error details.  There is a common set of
              # message types for APIs to use.
            {
              "a_key": "", # Properties of the object. Contains field @type with type URL.
            },
          ],
          "message": "A String", # A developer-facing error message, which should be in English. Any
              # user-facing error message should be localized and sent in the
              # google.rpc.Status.details field, or localized by the client.
        },
        "metadata": { # Service-specific metadata associated with the operation.  It typically
            # contains progress information and common metadata such as create time.
            # Some services might not provide such metadata.  Any method that returns a
            # long-running operation should document the metadata type, if any.
          "a_key": "", # Properties of the object. Contains field @type with type URL.
        },
        "response": { # The normal response of the operation in case of success.  If the original
            # method returns no data on success, such as `Delete`, the response is
            # `google.protobuf.Empty`.  If the original method is standard
            # `Get`/`Create`/`Update`, the response should be the resource.  For other
            # methods, the response should have the type `XxxResponse`, where `Xxx`
            # is the original method name.  For example, if the original method name
            # is `TakeSnapshot()`, the inferred response type is
            # `TakeSnapshotResponse`.
          "a_key": "", # Properties of the object. Contains field @type with type URL.
        },
        "done": True or False, # If the value is `false`, it means the operation is still in progress.
            # If `true`, the operation is completed, and either `error` or `response` is
            # available.
      }

`delete(name, x__xgafv=None)`

    Deletes a `Membership`.

    Args:
      name: string, Required. The [resource name](https://cloud.google.com/apis/design/resource_names) of
    the `Membership` to delete.

    Must be of the form `groups/{group_id}/memberships/{membership_id}`. (required)
      x__xgafv: string, V1 error format.
        Allowed values
          1 - v1 error format
          2 - v2 error format

    Returns:
      An object of the form:

        { # This resource represents a long-running operation that is the result of a
          # network API call.
        "name": "A String", # The server-assigned name, which is only unique within the same service that
            # originally returns it. If you use the default HTTP mapping, the
            # `name` should be a resource name ending with `operations/{unique_id}`.
        "error": { # The `Status` type defines a logical error model that is suitable for # The error result of the operation in case of failure or cancellation.
            # different programming environments, including REST APIs and RPC APIs. It is
            # used by [gRPC](https://github.com/grpc). Each `Status` message contains
            # three pieces of data: error code, error message, and error details.
            #
            # You can find out more about this error model and how to work with it in the
            # [API Design Guide](https://cloud.google.com/apis/design/errors).
          "code": 42, # The status code, which should be an enum value of google.rpc.Code.
          "details": [ # A list of messages that carry the error details.  There is a common set of
              # message types for APIs to use.
            {
              "a_key": "", # Properties of the object. Contains field @type with type URL.
            },
          ],
          "message": "A String", # A developer-facing error message, which should be in English. Any
              # user-facing error message should be localized and sent in the
              # google.rpc.Status.details field, or localized by the client.
        },
        "metadata": { # Service-specific metadata associated with the operation.  It typically
            # contains progress information and common metadata such as create time.
            # Some services might not provide such metadata.  Any method that returns a
            # long-running operation should document the metadata type, if any.
          "a_key": "", # Properties of the object. Contains field @type with type URL.
        },
        "response": { # The normal response of the operation in case of success.  If the original
            # method returns no data on success, such as `Delete`, the response is
            # `google.protobuf.Empty`.  If the original method is standard
            # `Get`/`Create`/`Update`, the response should be the resource.  For other
            # methods, the response should have the type `XxxResponse`, where `Xxx`
            # is the original method name.  For example, if the original method name
            # is `TakeSnapshot()`, the inferred response type is
            # `TakeSnapshotResponse`.
          "a_key": "", # Properties of the object. Contains field @type with type URL.
        },
        "done": True or False, # If the value is `false`, it means the operation is still in progress.
            # If `true`, the operation is completed, and either `error` or `response` is
            # available.
      }

`get(name, x__xgafv=None)`

    Retrieves a `Membership`.

    Args:
      name: string, Required. The [resource name](https://cloud.google.com/apis/design/resource_names) of
    the `Membership` to retrieve.

    Must be of the form `groups/{group_id}/memberships/{membership_id}`. (required)
      x__xgafv: string, V1 error format.
        Allowed values
          1 - v1 error format
          2 - v2 error format

    Returns:
      An object of the form:

        { # A membership within the Cloud Identity Groups API.
          #
          # A `Membership` defines a relationship between a `Group` and an entity
          # belonging to that `Group`, referred to as a "member".
        "preferredMemberKey": { # A unique identifier for an entity in the Cloud Identity Groups API. # Required. Immutable. The `EntityKey` of the member.
            #
            # Either `member_key` or `preferred_member_key` must be set when calling
            # MembershipsService.CreateMembership but not both; both shall be set
            # when returned.
            #
            # An entity can represent either a group with an optional `namespace` or a user
            # without a `namespace`. The combination of `id` and `namespace` must be
            # unique; however, the same `id` can be used with different `namespace`s.
          "id": "A String", # The ID of the entity.
              #
              # For Google-managed entities, the `id` must be the email address of an
              # existing group or user.
              #
              # For external-identity-mapped entities, the `id` must be a string conforming
              # to the Identity Source's requirements.
              #
              # Must be unique within a `namespace`.
          "namespace": "A String", # The namespace in which the entity exists.
              #
              # If not specified, the `EntityKey` represents a Google-managed entity such
              # as a Google user or a Google Group.
              #
              # If specified, the `EntityKey` represents an external-identity-mapped group.
              # The namespace must correspond to an identity source created in Admin
              # Console and must be in the form of `identitysources/{identity_source_id}.
        },
        "createTime": "A String", # Output only. The time when the `Membership` was created.
        "name": "A String", # Output only. The [resource name](https://cloud.google.com/apis/design/resource_names) of
            # the `Membership`.
            #
            # Shall be of the form `groups/{group_id}/memberships/{membership_id}`.
        "type": "A String", # Output only. The type of the membership.
        "memberKey": { # A unique identifier for an entity in the Cloud Identity Groups API. # Immutable. The `EntityKey` of the member.
            #
            # Either `member_key` or `preferred_member_key` must be set when calling
            # MembershipsService.CreateMembership but not both; both shall be set
            # when returned.
            #
            # An entity can represent either a group with an optional `namespace` or a user
            # without a `namespace`. The combination of `id` and `namespace` must be
            # unique; however, the same `id` can be used with different `namespace`s.
          "id": "A String", # The ID of the entity.
              #
              # For Google-managed entities, the `id` must be the email address of an
              # existing group or user.
              #
              # For external-identity-mapped entities, the `id` must be a string conforming
              # to the Identity Source's requirements.
              #
              # Must be unique within a `namespace`.
          "namespace": "A String", # The namespace in which the entity exists.
              #
              # If not specified, the `EntityKey` represents a Google-managed entity such
              # as a Google user or a Google Group.
              #
              # If specified, the `EntityKey` represents an external-identity-mapped group.
              # The namespace must correspond to an identity source created in Admin
              # Console and must be in the form of `identitysources/{identity_source_id}.
        },
        "roles": [ # The `MembershipRole`s that apply to the `Membership`.
            #
            # If unspecified, defaults to a single `MembershipRole` with `name` `MEMBER`.
            #
            # Must not contain duplicate `MembershipRole`s with the same `name`.
          { # A membership role within the Cloud Identity Groups API.
              #
              # A `MembershipRole` defines the privileges granted to a `Membership`.
            "expiryDetail": { # The `MembershipRole` expiry details. # The expiry details of the `MembershipRole`.
                #
                # Expiry details are only supported for `MEMBER` `MembershipRoles`.
                #
                # May be set if `name` is `MEMBER`. Must not be set if `name` is any other
                # value.
              "expireTime": "A String", # The time at which the `MembershipRole` will expire.
            },
            "name": "A String", # The name of the `MembershipRole`.
                #
                # Must be one of `OWNER`, `MANAGER`, `MEMBER`.
          },
        ],
        "updateTime": "A String", # Output only. The time when the `Membership` was last updated.
      }

`list(parent, view=None, pageToken=None, pageSize=None, x__xgafv=None)`

    Lists the `Membership`s within a `Group`.

    Args:
      parent: string, Required. The parent `Group` resource under which to lookup the `Membership` name.

    Must be of the form `groups/{group_id}`. (required)
      view: string, The level of detail to be returned.

    If unspecified, defaults to `MembershipView.BASIC`.
      pageToken: string, The `next_page_token` value returned from a previous search request, if
    any.
      pageSize: integer, The maximum number of results to return.

    Note that the number of results returned may be less than this value even
    if there are more available results. To fetch all results, clients must
    continue calling this method repeatedly until the response no longer
    contains a `next_page_token`.

    If unspecified, defaults to 200 for `GroupView.BASIC` and to 50 for
    `GroupView.FULL`.

    Must not be greater than 1000 for `GroupView.BASIC` or 500 for
    `GroupView.FULL`.
      x__xgafv: string, V1 error format.
        Allowed values
          1 - v1 error format
          2 - v2 error format

    Returns:
      An object of the form:

        { # The response message for MembershipsService.ListMemberships.
        "memberships": [ # The `Membership`s under the specified `parent`.
          { # A membership within the Cloud Identity Groups API.
              #
              # A `Membership` defines a relationship between a `Group` and an entity
              # belonging to that `Group`, referred to as a "member".
            "preferredMemberKey": { # A unique identifier for an entity in the Cloud Identity Groups API. # Required. Immutable. The `EntityKey` of the member.
                #
                # Either `member_key` or `preferred_member_key` must be set when calling
                # MembershipsService.CreateMembership but not both; both shall be set
                # when returned.
                #
                # An entity can represent either a group with an optional `namespace` or a user
                # without a `namespace`. The combination of `id` and `namespace` must be
                # unique; however, the same `id` can be used with different `namespace`s.
              "id": "A String", # The ID of the entity.
                  #
                  # For Google-managed entities, the `id` must be the email address of an
                  # existing group or user.
                  #
                  # For external-identity-mapped entities, the `id` must be a string conforming
                  # to the Identity Source's requirements.
                  #
                  # Must be unique within a `namespace`.
              "namespace": "A String", # The namespace in which the entity exists.
                  #
                  # If not specified, the `EntityKey` represents a Google-managed entity such
                  # as a Google user or a Google Group.
                  #
                  # If specified, the `EntityKey` represents an external-identity-mapped group.
                  # The namespace must correspond to an identity source created in Admin
                  # Console and must be in the form of `identitysources/{identity_source_id}.
            },
            "createTime": "A String", # Output only. The time when the `Membership` was created.
            "name": "A String", # Output only. The [resource name](https://cloud.google.com/apis/design/resource_names) of
                # the `Membership`.
                #
                # Shall be of the form `groups/{group_id}/memberships/{membership_id}`.
            "type": "A String", # Output only. The type of the membership.
            "memberKey": { # A unique identifier for an entity in the Cloud Identity Groups API. # Immutable. The `EntityKey` of the member.
                #
                # Either `member_key` or `preferred_member_key` must be set when calling
                # MembershipsService.CreateMembership but not both; both shall be set
                # when returned.
                #
                # An entity can represent either a group with an optional `namespace` or a user
                # without a `namespace`. The combination of `id` and `namespace` must be
                # unique; however, the same `id` can be used with different `namespace`s.
              "id": "A String", # The ID of the entity.
                  #
                  # For Google-managed entities, the `id` must be the email address of an
                  # existing group or user.
                  #
                  # For external-identity-mapped entities, the `id` must be a string conforming
                  # to the Identity Source's requirements.
                  #
                  # Must be unique within a `namespace`.
              "namespace": "A String", # The namespace in which the entity exists.
                  #
                  # If not specified, the `EntityKey` represents a Google-managed entity such
                  # as a Google user or a Google Group.
                  #
                  # If specified, the `EntityKey` represents an external-identity-mapped group.
                  # The namespace must correspond to an identity source created in Admin
                  # Console and must be in the form of `identitysources/{identity_source_id}.
            },
            "roles": [ # The `MembershipRole`s that apply to the `Membership`.
                #
                # If unspecified, defaults to a single `MembershipRole` with `name` `MEMBER`.
                #
                # Must not contain duplicate `MembershipRole`s with the same `name`.
              { # A membership role within the Cloud Identity Groups API.
                  #
                  # A `MembershipRole` defines the privileges granted to a `Membership`.
                "expiryDetail": { # The `MembershipRole` expiry details. # The expiry details of the `MembershipRole`.
                    #
                    # Expiry details are only supported for `MEMBER` `MembershipRoles`.
                    #
                    # May be set if `name` is `MEMBER`. Must not be set if `name` is any other
                    # value.
                  "expireTime": "A String", # The time at which the `MembershipRole` will expire.
                },
                "name": "A String", # The name of the `MembershipRole`.
                    #
                    # Must be one of `OWNER`, `MANAGER`, `MEMBER`.
              },
            ],
            "updateTime": "A String", # Output only. The time when the `Membership` was last updated.
          },
        ],
        "nextPageToken": "A String", # A continuation token to retrieve the next page of results, or empty if
            # there are no more results available.
      }

`list_next(previous_request, previous_response)`

    Retrieves the next page of results.

    Args:
      previous_request: The request for the previous page. (required)
      previous_response: The response from the request for the previous page. (required)

    Returns:
      A request object that you can call 'execute()' on to request the next
      page. Returns None if there are no more items in the collection.

`lookup(parent, memberKey_namespace=None, memberKey_id=None, x__xgafv=None)`

    Looks up the [resource
    name](https://cloud.google.com/apis/design/resource_names) of a
    `Membership` by its `EntityKey`.

    Args:
      parent: string, Required. The parent `Group` resource under which to lookup the `Membership` name.

    Must be of the form `groups/{group_id}`. (required)
      memberKey_namespace: string, The namespace in which the entity exists.

    If not specified, the `EntityKey` represents a Google-managed entity such
    as a Google user or a Google Group.

    If specified, the `EntityKey` represents an external-identity-mapped group.
    The namespace must correspond to an identity source created in Admin
    Console and must be in the form of `identitysources/{identity_source_id}.
      memberKey_id: string, The ID of the entity.

    For Google-managed entities, the `id` must be the email address of an
    existing group or user.

    For external-identity-mapped entities, the `id` must be a string conforming
    to the Identity Source's requirements.

    Must be unique within a `namespace`.
      x__xgafv: string, V1 error format.
        Allowed values
          1 - v1 error format
          2 - v2 error format

    Returns:
      An object of the form:

        { # The response message for MembershipsService.LookupMembershipName.
        "name": "A String", # The [resource name](https://cloud.google.com/apis/design/resource_names) of
            # the looked-up `Membership`.
            #
            # Must be of the form `groups/{group_id}/memberships/{membership_id}`.
      }

`modifyMembershipRoles(name, body=None, x__xgafv=None)`

    Modifies the `MembershipRole`s of a `Membership`.

    Args:
      name: string, Required. The [resource name](https://cloud.google.com/apis/design/resource_names) of
    the `Membership` whose roles are to be modified.

    Must be of the form `groups/{group_id}/memberships/{membership_id}`. (required)
      body: object, The request body.
        The object takes the form of:

    { # The request message for MembershipsService.ModifyMembershipRoles.
        "updateRolesParams": [ # The `MembershipRole`s to be updated.
            #
            # Updating roles in the same request as adding or removing roles is not
            # supported.
            #
            # Must not be set if either `add_roles` or `remove_roles` is set.
          { # The details of an update to a `MembershipRole`.
            "fieldMask": "A String", # The fully-qualified names of fields to update.
                #
                # May only contain the field `expiry_detail`.
            "membershipRole": { # A membership role within the Cloud Identity Groups API. # The `MembershipRole`s to be updated.
                #
                # Only `MEMBER` `MembershipRoles` can currently be updated.
                #
                # May only contain a `MembershipRole` with `name` `MEMBER`.
                #
                # A `MembershipRole` defines the privileges granted to a `Membership`.
              "expiryDetail": { # The `MembershipRole` expiry details. # The expiry details of the `MembershipRole`.
                  #
                  # Expiry details are only supported for `MEMBER` `MembershipRoles`.
                  #
                  # May be set if `name` is `MEMBER`. Must not be set if `name` is any other
                  # value.
                "expireTime": "A String", # The time at which the `MembershipRole` will expire.
              },
              "name": "A String", # The name of the `MembershipRole`.
                  #
                  # Must be one of `OWNER`, `MANAGER`, `MEMBER`.
            },
          },
        ],
        "addRoles": [ # The `MembershipRole`s to be added.
            #
            # Adding or removing roles in the same request as updating roles is not
            # supported.
            #
            # Must not be set if `update_roles_params` is set.
          { # A membership role within the Cloud Identity Groups API.
              #
              # A `MembershipRole` defines the privileges granted to a `Membership`.
            "expiryDetail": { # The `MembershipRole` expiry details. # The expiry details of the `MembershipRole`.
                #
                # Expiry details are only supported for `MEMBER` `MembershipRoles`.
                #
                # May be set if `name` is `MEMBER`. Must not be set if `name` is any other
                # value.
              "expireTime": "A String", # The time at which the `MembershipRole` will expire.
            },
            "name": "A String", # The name of the `MembershipRole`.
                #
                # Must be one of `OWNER`, `MANAGER`, `MEMBER`.
          },
        ],
        "removeRoles": [ # The `name`s of the `MembershipRole`s to be removed.
            #
            # Adding or removing roles in the same request as updating roles is not
            # supported.
            #
            # It is not possible to remove the `MEMBER` `MembershipRole`. If you wish to
            # delete a `Membership`, call MembershipsService.DeleteMembership
            # instead.
            #
            # Must not contain `MEMBER`. Must not be set if `update_roles_params` is set.
          "A String",
        ],
      }

      x__xgafv: string, V1 error format.
        Allowed values
          1 - v1 error format
          2 - v2 error format

    Returns:
      An object of the form:

        { # The response message for MembershipsService.ModifyMembershipRoles.
        "membership": { # A membership within the Cloud Identity Groups API. # The `Membership` resource after modifying its `MembershipRole`s.
            #
            # A `Membership` defines a relationship between a `Group` and an entity
            # belonging to that `Group`, referred to as a "member".
          "preferredMemberKey": { # A unique identifier for an entity in the Cloud Identity Groups API. # Required. Immutable. The `EntityKey` of the member.
              #
              # Either `member_key` or `preferred_member_key` must be set when calling
              # MembershipsService.CreateMembership but not both; both shall be set
              # when returned.
              #
              # An entity can represent either a group with an optional `namespace` or a user
              # without a `namespace`. The combination of `id` and `namespace` must be
              # unique; however, the same `id` can be used with different `namespace`s.
            "id": "A String", # The ID of the entity.
                #
                # For Google-managed entities, the `id` must be the email address of an
                # existing group or user.
                #
                # For external-identity-mapped entities, the `id` must be a string conforming
                # to the Identity Source's requirements.
                #
                # Must be unique within a `namespace`.
            "namespace": "A String", # The namespace in which the entity exists.
                #
                # If not specified, the `EntityKey` represents a Google-managed entity such
                # as a Google user or a Google Group.
                #
                # If specified, the `EntityKey` represents an external-identity-mapped group.
                # The namespace must correspond to an identity source created in Admin
                # Console and must be in the form of `identitysources/{identity_source_id}.
          },
          "createTime": "A String", # Output only. The time when the `Membership` was created.
          "name": "A String", # Output only. The [resource name](https://cloud.google.com/apis/design/resource_names) of
              # the `Membership`.
              #
              # Shall be of the form `groups/{group_id}/memberships/{membership_id}`.
          "type": "A String", # Output only. The type of the membership.
          "memberKey": { # A unique identifier for an entity in the Cloud Identity Groups API. # Immutable. The `EntityKey` of the member.
              #
              # Either `member_key` or `preferred_member_key` must be set when calling
              # MembershipsService.CreateMembership but not both; both shall be set
              # when returned.
              #
              # An entity can represent either a group with an optional `namespace` or a user
              # without a `namespace`. The combination of `id` and `namespace` must be
              # unique; however, the same `id` can be used with different `namespace`s.
            "id": "A String", # The ID of the entity.
                #
                # For Google-managed entities, the `id` must be the email address of an
                # existing group or user.
                #
                # For external-identity-mapped entities, the `id` must be a string conforming
                # to the Identity Source's requirements.
                #
                # Must be unique within a `namespace`.
            "namespace": "A String", # The namespace in which the entity exists.
                #
                # If not specified, the `EntityKey` represents a Google-managed entity such
                # as a Google user or a Google Group.
                #
                # If specified, the `EntityKey` represents an external-identity-mapped group.
                # The namespace must correspond to an identity source created in Admin
                # Console and must be in the form of `identitysources/{identity_source_id}.
          },
          "roles": [ # The `MembershipRole`s that apply to the `Membership`.
              #
              # If unspecified, defaults to a single `MembershipRole` with `name` `MEMBER`.
              #
              # Must not contain duplicate `MembershipRole`s with the same `name`.
            { # A membership role within the Cloud Identity Groups API.
                #
                # A `MembershipRole` defines the privileges granted to a `Membership`.
              "expiryDetail": { # The `MembershipRole` expiry details. # The expiry details of the `MembershipRole`.
                  #
                  # Expiry details are only supported for `MEMBER` `MembershipRoles`.
                  #
                  # May be set if `name` is `MEMBER`. Must not be set if `name` is any other
                  # value.
                "expireTime": "A String", # The time at which the `MembershipRole` will expire.
              },
              "name": "A String", # The name of the `MembershipRole`.
                  #
                  # Must be one of `OWNER`, `MANAGER`, `MEMBER`.
            },
          ],
          "updateTime": "A String", # Output only. The time when the `Membership` was last updated.
        },
      }