code: def set_as_environment_variables(self, override=False):
          
          for k, v in self.dict().items():
              if k in os.environ and not override:
                  continue
              # With Python2 on Windows, force environment variables to str to avoid
              # "TypeError: environment can only contain strings" in Python's subprocess.py.
              if PY2 and WIN:
                  if isinstance(k, text_type) or isinstance(v, text_type):
                      k = k.encode('ascii')
                      v = v.encode('ascii')
              os.environ[k] = v
  
          return True
docs: Load the current dotenv as system environemt variable.