docs: public com.squareup.okhttp.Call postFleetsFleetIdMembersAsync(Long fleetId, String datasource, String token,
              FleetInvitation fleetInvitation, final ApiCallback<Void> callback) throws ApiException {
  
          com.squareup.okhttp.Call call = postFleetsFleetIdMembersValidateBeforeCall(fleetId, datasource, token,
                  fleetInvitation, callback);
          apiClient.executeAsync(call, callback);
          return call;
      }