code: def find(cls, db, *args, **kwargs):
          
          cls._ensure_indexes(db)
          docs = db[cls.collection].find(*args, **kwargs)
          return MongoResultSet(docs, partial(cls.wrap_incoming, db=db))
docs: Returns a :class:`MongoResultSet` object.
  
          Example::
  
              items = Item.find(db, {'title': u'Hello'})
  
          .. note::
  
             The arguments are those of pymongo collection's `find` method.
             A frequent error is to pass query key/value pairs as keyword
             arguments. This is **wrong**. In most cases you will want to pass
             a dictionary ("query spec") as the first positional argument.