def are_blocks_adjacent(block: Block, prev_block: Block) -> bool:
is_valid_block = block.is_valid()
is_valid_next = (
block.index == prev_block.index + 1 and block.prev_hash == prev_block.hash
)
return is_valid_block and is_valid_next
def add_block(self, block: Block) -> bool:
if block.is_valid() and self.is_next_block(block):
self.blocks.append(block)
return True
else:
return False