message: Remove Token::token_type
diff: @@ -11,8 +11,6 @@ use std::env;
  pub struct Token {
  #[builder(setter(into))]
  pub access_token: String,
  - #[builder(setter(into))]
  - pub token_type: String,
  pub expires_in: u32,
  pub expires_at: Option<i64>,
  #[builder(setter(into, strip_option), default)]
  