Represents a request to call a tool.
interface ToolCallBaseContentBlockconst toolCall: ToolCall = {
type: "tool_call",
name: "foo",
args: { a: 1 },
callId: "123"
};The arguments to the tool call
An optional identifier for the document.
Ideally this should be unique across the document collection and formatted as a UUID, but this will not be enforced.