<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def _split_raw_signature(sig):
 """ Split raw signature into components :param sig: The signature :return: A 2-tuple """

        c_length = len(sig) // 2
        r = int_from_bytes(sig[:c_length], byteorder='big')
        s = int_from_bytes(sig[c_length:], byteorder='big')
        return r, s