'Limits the number of results to be returned by this cursor.
Raises :exc:`TypeError` if `limit` is not an integer. Raises
:exc:`~pymongo.errors.InvalidOperation` if this :class:`Cursor`
has already been used. The last `limit` applied to this cursor
takes precedence. A limit of ``0`` is equivalent to no limit.
:Parameters:
- `limit`: the number of results to return
.. mongodoc:: limit'

def limit(self, limit):

    if (not isinstance(limit, integer_types)):
        raise TypeError('limit    must    be    an    integer')
    if self.__exhaust:
        raise InvalidOperation("Can't    use    limit    and    exhaust    together.")
    self.__check_okay_to_chain()
    self.__empty = False
    self.__limit = limit
    return self
