<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:

def find_and_modify(self, new=False, remove=False):
        ''' The mongo "find and modify" command.  Behaves like an update expression
            in that "execute" must be called to do the update and return the
            results.

            :param new: Whether to return the new object or old (default: False)
            :param remove: Whether to remove the object before returning it
        '''
        return FindAndModifyExpression(self, new=new, remove=remove)