<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def btc_is_p2sh_address( address ):
 """ Is the given address a p2sh address? """

    vb = keylib.b58check.b58check_version_byte( address )
    if vb == multisig_version_byte:
        return True
    else:
        return False