docs: def find(self, **kwargs):
          """Returns List(typeof=).
  
          Executes collection's find method based on keyword args
          maps results ( dict to list of entity instances).
  
          Set max_limit parameter to limit the amount of data send back through network
  
          Example::
  
              manager = EntityManager(Product)
              products = yield manager.find(age={'$gt': 17}, max_limit=100)
  
           """
          max_limit = None
          if 'max_limit' in kwargs:
              max_limit = kwargs.pop('max_limit')
          cursor = self.__collection.find(kwargs)
          instances = []
          for doc in (yield cursor.to_list(max_limit)):
              instance = self.__entity()
              instance.map_dict(doc)
              instances.append(instance)
          return instances