def __init__(self,
prev_blocks: Sequence[IBlock] = None,
name: Optional[str] = None):
Block.__init__(self, None, 1, name=name)
if prev_blocks is not None:
for b in prev_blocks:
if b is not None:
self.conn_to_prev_block(b)
def __init__(self):
Block.__init__(self, None, 2)