  
          return coreapi.Link(
              url=urlparse.urljoin(base_url, path),
              action=method.lower(),
              encoding=None,
              fields=self._fields,
              description=self._description
          )
  
  
 
</s> remove     def __init__(self, fields, description=''):
 </s> add     def __init__(self, fields, description='', encoding=None):
            encoding=self._encoding,
  
          return coreapi.Link(
              url=urlparse.urljoin(base_url, path),
              action=method.lower(),
            encoding=self._encoding,
              fields=self._fields,
              description=self._description
          )
  
  
keep keep keep keep replace keep keep keep keep keep
 Add schema to ObtainAuthToken
Add encoding parameter to ManualSchema

Closes #5676

* Fixed lint errors
* Added docs for ManualSchema encoding parameter 
rest_framework/schemas/inspectors.py