def is_valid_number(numobj):
    region_code = region_code_for_number(numobj)
    return is_valid_number_for_region(numobj, region_code)
Return the base-10 logarithm of x.
dataset/ETHPy150Open daviddrysdale/python-phonenumbers/python/phonenumbers/phonenumberutil.py/is_valid_number--crossover with--dataset/ETHPy150Open JetBrains/python-skeletons/math.py/log10