Audio creates a new AudioContentPart with the provided raw audio data and format.

CallTool creates a new ToolCallData instance with the given name and arguments.

Image creates a new ImageContentPart with the given URL.

New creates a new messageBuilder instance with the current timestamp.

Refusal creates a new RefusalContentPart with the given reason.

Text creates a new TextContentPart with the given text.

AssistantContentOrParts represents content that can be either a simple string or a collection of assistant-specific content parts (text or refusal).

AssistantMessage represents a response from the assistant.

AudioContentPart represents an audio content part.

ContentOrParts represents either a simple string content or a collection of content parts.

ImageContentPart represents an image content part with a URL.

InputAudio contains the data and format information for audio content.

InstructionsMessage represents system-level instructions.

Message is a generic container for all message types in the system.

RefusalContentPart represents a content part indicating a refusal message.

Retry represents a failed tool execution that may need to be retried.

TextContentPart represents a text-only content part.

ToolCallData contains the information needed to execute a tool.

ToolCallMessage represents a request to execute one or more tools.

ToolResponse represents the successful result of a tool execution.

UserMessage represents a message from a user.

AssistantContentPart is an interface that marks structs as valid assistant content parts.

ContentPart is an interface that marks structs as valid content parts.

ModelMessage is a marker interface that all message types must implement.

Request is a marker interface that identifies messages that can be used as requests in the system.

Response is a marker interface that identifies messages that can be used as responses in the system.