Interface StreamTextPart

interface StreamTextPart {
    type:
        | "error"
        | "text"
        | "reasoning"
        | "source"
        | "text-delta"
        | "tool-call"
        | "tool-result"
        | "tool-call-delta"
        | "finish"
        | "step-finish"
        | "reasoning-delta"
        | "file"
        | "image";
    [key: string]: any;
}