API: Popular Episodes

type Response = {
  success: true;
  result: {
    episodeId: string;
    seq: number;
    title: string;
    podcastName: string;
    podcastSeq: number;
    cover: string;
    // May be null
    epCover: string | null;
    linkType: string;
    // Duration in seconds, may be null
    duration: number | null;
  }[];
};