Please install this package via pip:

pip install agent-framework-declarative --pre

This package ships at two different stability levels:

• Declarative workflows (WorkflowFactory, executors, handlers, and the _workflows surface) are at release-candidate stability and may receive only minor refinements before GA.
• Declarative agents (AgentFactory and the YAML agent loading/parsing path: DeclarativeLoaderError, ProviderLookupError, ProviderTypeMapping) are experimental and may change or be removed in future versions without notice. Using any of these symbols emits an ExperimentalWarning on first use.

The declarative packages provides support for building agents based on a declarative yaml specification.