human
Solve the following python programming problem given the following code:
def op(self, opstring, precedence = 0, is_comparison = False) : 
    'produce a generic operator function.

        e.g.::

          somecolumn.op("*")(5)

        produces::

          somecolumn * 5

        This function can also be used to make bitwise operators explicit. For
        example::

          somecolumn.op(\'&\')(0xff)

        is a bitwise AND of the value in ``somecolumn``.

        :param operator: a string which will be output as the infix operator
          between this element and the expression passed to the
          generated function.

        :param precedence: precedence to apply to the operator, when
         parenthesizing expressions.  A lower number will cause the expression
         to be parenthesized when applied against another operator with
         higher precedence.  The default value of ``0`` is lower than all
         operators except for the comma (``,``) and ``AS`` operators.
         A value of 100 will be higher or equal to all operators, and -100
         will be lower than or equal to all operators.

         .. versionadded:: 0.8 - added the \'precedence\' argument.

        :param is_comparison: if True, the operator will be considered as a
         "comparison" operator, that is which evaluates to a boolean
         true/false value, like ``==``, ``>``, etc.  This flag should be set
         so that ORM relationships can establish that the operator is a
         comparison operator when used in a custom join condition.

         .. versionadded:: 0.9.2 - added the
            :paramref:`.Operators.op.is_comparison` flag.

        .. seealso::

            :ref:`types_operators`

            :ref:`relationship_custom_operator`

        ' 
    operator = custom_op (opstring, self, is_comparison) 
    def against(other) : 
        return operator (self, other) 
return against 

    
    

    Fix the buggy line: operator = custom_op (opstring, self, is_comparison)
assistant
#Here is Python program to fix the buggy line: operator = custom_op (opstring, self, is_comparison)
.

operator = custom_op (opstring, precedence, is_comparison)