def store_abci_chain(conn, height, chain_id, is_synced=True):
    """Create or update an ABCI chain at the given height.
    Usually invoked in the beginning of the ABCI communications (height=0)
    or when ABCI client (like Tendermint) is migrated (any height).

    Args:
        is_synced: True if the chain is known by both ABCI client and server
    """

    raise NotImplementedError
Create or update an ABCI chain at the given height.
Usually invoked in the beginning of the ABCI communications (height=0)
or when ABCI client (like Tendermint) is migrated (any height).

Args:
is_synced: True if the chain is known by both ABCI client and server
bigchaindb/backend/query.py