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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 __pad_value(value, pad_len_multiple, pad_char):
 """Add padding characters to the value if needed. Args: value: The string value to be padded. pad_len_multiple: Pad the result so its length is a multiple of pad_len_multiple. pad_char: The character to use for padding. Returns: The string value with padding characters added. """

    assert pad_len_multiple > 0
    assert len(pad_char) == 1
    padding_length = (pad_len_multiple -
                      (len(value) % pad_len_multiple)) % pad_len_multiple
    return value + pad_char * padding_length