code: public ApiResponse<ApiSuccessResponse> completeCallWithHttpInfo(String id, UserData userData) throws ApiException {
          com.squareup.okhttp.Call call = completeCallValidateBeforeCall(id, userData, null, null);
          Type localVarReturnType = new TypeToken<ApiSuccessResponse>(){}.getType();
          return apiClient.execute(call, localVarReturnType);
      }
docs: Complete a call
  Complete the specified call by adding information to its user data after it has been released. You should make this request on released calls if you set automatic complete to false in [/activate-channels](/reference/workspace/Session/index.html#activateChannels).
  @param id The connection ID of the call. (required)
  @param userData Key/value data to include with the call. (required)
  @return ApiResponse&lt;ApiSuccessResponse&gt;
  @throws ApiException If fail to call the API, e.g. server error or cannot deserialize the response body