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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def dispatch_missing(op, left, right, result):
 """ Fill nulls caused by division by zero, casting to a diffferent dtype if necessary. Parameters left : object (Index for non-reversed ops) right : object (Index fof reversed ops) result : ndarray Returns ------- result : ndarray """

    opstr = '__{opname}__'.format(opname=op.__name__).replace('____', '__')
    if op in [operator.truediv, operator.floordiv,
              getattr(operator, 'div', None)]:
        result = mask_zero_div_zero(left, right, result)
    elif op is operator.mod:
        result = fill_zeros(result, left, right, opstr, np.nan)
    elif op is divmod:
        res0 = mask_zero_div_zero(left, right, result[0])
        res1 = fill_zeros(result[1], left, right, opstr, np.nan)
        result = (res0, res1)
    return result