def __init__(self, query_string, model_class, *args, **kwds):
    """Constructor.

    Args:
      query_string: Properly formatted GQL query string.
      model_class: Model class from which entities are constructed.
      *args: Positional arguments used to bind numeric references in the query.
      **kwds: Dictionary-based arguments for named references.
    """
    from google.appengine.ext import gql
    app = kwds.pop('_app', None)
    self._proto_query = gql.GQL(query_string, _app=app, namespace='')
    super(db.GqlQuery, self).__init__(model_class, namespace='')
    self.bind(*args, **kwds)
Constructor.

    Args:
      query_string: Properly formatted GQL query string.
      model_class: Model class from which entities are constructed.
      *args: Positional arguments used to bind numeric references in the query.
      **kwds: Dictionary-based arguments for named references.
    
mapreduce/lib/blobstore/blobstore.py