code: public ApiResponse<List<CorporationContractsItemsResponse>> getCorporationsCorporationIdContractsContractIdItemsWithHttpInfo(
              Integer contractId, Integer corporationId, String datasource, String ifNoneMatch, String token)
              throws ApiException {
          com.squareup.okhttp.Call call = getCorporationsCorporationIdContractsContractIdItemsValidateBeforeCall(
                  contractId, corporationId, datasource, ifNoneMatch, token, null);
          Type localVarReturnType = new TypeToken<List<CorporationContractsItemsResponse>>() {
          }.getType();
          return apiClient.execute(call, localVarReturnType);
      }
docs: Get corporation contract items Lists items of a particular contract ---
  This route is cached for up to 3600 seconds SSO Scope:
  esi-contracts.read_corporation_contracts.v1 SSO Scope:
  esi-contracts.read_character_contracts.v1
  
  @param contractId
  ID of a contract (required)
  @param corporationId
  An EVE corporation 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 ApiResponse&lt;List&lt;CorporationContractsItemsResponse&gt;&gt;
  @throws ApiException
  If fail to call the API, e.g. server error or cannot
  deserialize the response body