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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 smeft_evolve_leadinglog(C_in, scale_in, scale_out, newphys=True):
 """Solve the SMEFT RGEs in the leading log approximation. Input C_in and output C_out are dictionaries of arrays."""

    C_out = deepcopy(C_in)
    b = beta.beta(C_out, newphys=newphys)
    for k, C in C_out.items():
        C_out[k] = C + b[k] / (16 * pi**2) * log(scale_out / scale_in)
    return C_out