code: public List<CharacterSkillqueueResponse> getCharactersCharacterIdSkillqueue(Integer characterId, String datasource,
              String ifNoneMatch, String token) throws ApiException {
          ApiResponse<List<CharacterSkillqueueResponse>> resp = getCharactersCharacterIdSkillqueueWithHttpInfo(
                  characterId, datasource, ifNoneMatch, token);
          return resp.getData();
      }
docs: Get character&#39;s skill queue List the configured skill queue for the
  given character --- This route is cached for up to 120 seconds SSO Scope:
  esi-skills.read_skillqueue.v1
  
  @param characterId
  An EVE character ID (required)
  @param datasource
  The server name you would like data from (optional, default to
  tranquility)
  @param ifNoneMatch
  ETag from a previous request. A 304 will be returned if this
  matches the current ETag (optional)
  @param token
  Access token to use if unable to set a header (optional)
  @return List&lt;CharacterSkillqueueResponse&gt;
  @throws ApiException
  If fail to call the API, e.g. server error or cannot
  deserialize the response body