def signatures_to_bytes(signatures: List[Tuple[int, int, int]]) -> bytes:
    """
    Convert signatures to bytes
    :param signatures: list of tuples(v, r, s)
    :return: 65 bytes per signature
    """
    return b''.join([signature_to_bytes(vrs) for vrs in signatures])
def signatures_to_bytes(signatures: List[Tuple[int, int, int]]) -> bytes:
    """
    Convert signatures to bytes
    :param signatures: list of tuples(v, r, s)
    :return: 65 bytes per signature
    """
    return b''.join([signature_to_bytes(vrs) for vrs in signatures])
def signatures_to_bytes ( signatures : List [ Tuple [ int , int , int ] ] ) -> bytes : return b'' . join ( [ signature_to_bytes ( vrs ) for vrs in signatures ] )
Convert signatures to bytes
    :param signatures: list of tuples(v, r, s)
    :return: 65 bytes per signature
Convert signatures to bytes : param signatures : list of tuples ( v r s ) : return : 65 bytes per signature