code: def run(self, path_or_tests, dot_env_path=None, mapping=None):
          
          if validator.is_testcase_path(path_or_tests):
              return self.run_path(path_or_tests, dot_env_path, mapping)
          elif validator.is_testcases(path_or_tests):
              return self.run_tests(path_or_tests)
          else:
              raise exceptions.ParamsError("Invalid testcase path or testcases: {}".format(path_or_tests))
docs: main interface.
  
          Args:
              path_or_tests:
                  str: testcase/testsuite file/foler path
                  dict: valid testcase/testsuite data