Add document to allowed cacheable_types for anthropic

[marpulli]

Document is an allowed type as per the Anthropic docs:

Images & Documents: Content blocks in the messages.content array, in user turns

This example now works

import pathlib from pydantic_ai import Agent, BinaryContent, CachePoint from pydantic_ai.models.anthropic import AnthropicModel from pydantic_ai.providers.anthropic import AnthropicProvider model = AnthropicModel( "claude-3-5-haiku-20241022", provider=AnthropicProvider(api_key=SETTINGS.anthropic_api_key), ) agent = Agent(model=model) binary_data = pathlib.Path("example.pdf").open("rb").read() user_prompt = [ BinaryContent( data=binary_data, media_type="application/pdf", ), CachePoint(), ] result = await agent.run( user_prompt=user_prompt, ) ```

[DouweM]

@marpulli Thanks Mark! Looks like the Cache control not supported for param type: error is now uncovered. Can you please either add a new test for a type that is still unsupported for cache control (assuming there is one you can easily create in Pydantic AI), or if not, add a # pragma: no cover comment to the line(s) in question?

[marpulli]

Thanks for a speedy review @DouweM! I've changed the test to use the thinking type as thinking blocks don't support caching with cache_control param according to the anthropic docs