"    Input:  {
              (out)                 - output
              (repo_uoa)            - repository for run tests for. If not set, runs tests for all repositories
              (test_module_uoa)     - module for tun tests for. If not set, runs tests for all modules
              (test_file_pattern)   - test file pattern. If not given, the default if 'test*.py'. 
                                      Only tests from files that comply with the pattern, will be executed.
              (test_names)          - comma-separated names of the test methods to run. If not set, all methods are run
            }

    Output: {
              return       - return code =  0, if successful
                                         >  0, if error. This error means test execution failed.
                                            If some tests are failed, but the process overall succeded,
                                            the return value is 0.
              
              (error)      - error message

              (stats) {
                        tests_run      - integer, total number of tests run
                        tests_failed   - integer, total number of tests failed by all reasons. Detailed results are
                                         provided in the 'results' field (see below)
                      }

              (repo_results)   - list of results for each repo. 
                                 Each list item is what 'run_data_tests' returned for this repo.
            }

"