content: TContent;

content: TContent;

optional name: string;

optional name: string;

role: "user" | "assistant" | "tool";

role: "user" | "assistant" | "tool";

optional thinking: object[];

optional thinking: object[];

content: string;

content: string;

optional signature: string;

optional signature: string;

optional toolCallId: string;

optional toolCallId: string;

optional toolCalls: ToolCall<unknown>[];

optional toolCalls: ToolCall<unknown>[];