human
What is a the Python code you requested given the following:
Complete the below
def make_derivative_operator(M, z):

    ''''Create a derivative operator, to be passed to Operator.apply.'
    '''
assistant
#Here is the Python code you requested.
    def doit(C):
        r = ((z * C.diff(z)) + (C * M))
        r = r.applyfunc(make_simp(z))
        return r
    return doit