0.23a0

Alpha release adding support for schemas, for getting supported models to output JSON that matches a specified JSON schema. #776

• llm prompt --schema '{JSON schema goes here} option for specifying a schema that should be used for the output from the model, see schemas in the CLI docs.
• model.prompt(..., schema={...}) parameter for specifying a schema from Python. This accepts either a dictionary JSON schema definition of a Pydantic BaseModel subclass, see schemas in the Python API docs.
• The default OpenAI plugin now supports schemas across all models.
• Documentation on how to add schema support to a model plugin.
• LLM now depends on Pydantic v2 or higher. Pydantic v1 is no longer supported. #520