message: Change `FullEpisode.duration_ms` to duration.
diff: use super::image::Image;
  use super::page::Page;
  -use crate::model::{CopyrightType, DatePrecision};
  +use crate::model::{from_duration_ms, to_duration_ms, CopyrightType, DatePrecision};
  use serde::{Deserialize, Serialize};
  use std::collections::HashMap;
  +use std::time::Duration;
  /// Copyright object
  ///
  @@ -85,7 +86,12 @@ pub struct FullShow {
  pub struct SimplifiedEpisode {
  pub audio_preview_url: Option<String>,
  pub description: String,
  - pub duration_ms: u32,
  + #[serde(
  + deserialize_with = "from_duration_ms",
  + serialize_with = "to_duration_ms",
  + rename = "duration_ms"
  + )]
  + pub duration: Duration,
  pub explicit: bool,
  pub external_urls: HashMap<String, String>,
  pub href: String,
  