Module traits 

Structs

StreamConfig

Configuration for a streaming LLM call

ToolDefinition

Tool definition sent to the LLM (schema only, no execute fn)

Enums

ProviderError

ResponseFormat

Desired output shape for an LLM call.

StreamEvent

Events emitted during LLM streaming.

Traits

StreamProvider

The core provider trait. Implement this for each LLM backend.