def create(cls, hash: str, merkle_root: str, merkle_leaves: str,
prev_block_hash: str, timestamp: int, masternode_signature: str,
masternode_vk: str, block_contender: BlockContender):
struct = blockdata_capnp.BlockMetaData.new_message()
struct.hash = hash
struct.merkleRoot = merkle_root
struct.merkleLeaves = merkle_leaves
struct.prevBlockHash = prev_block_hash
struct.timestamp = timestamp
struct.masternodeSignature = masternode_signature
struct.masternodeVk = masternode_vk
assert type(block_contender) == BlockContender, 'Not a block contender'
struct.blockContender = block_contender.serialize()
return cls.from_data(struct)
def _serialize_contender(block_contender: BlockContender) -> str:
hex_str = block_contender.serialize().hex()
return hex_str