Function isContentPart

packages/kosong/src/message.ts:106–111

(part: StreamedMessagePart)

/** Check if a streamed part is a ContentPart (text, think, image_url, audio_url, video_url). */
export function isContentPart(part: StreamedMessagePart): part is ContentPart {
  const t = part.type;
  return (
    t === 'text' || t === 'think' || t === 'image_url' || t === 'audio_url' || t === 'video_url'
  );
}

/** Check if a streamed part is a ToolCall. */
export function isToolCall(part: StreamedMessagePart): part is ToolCall {