def drop_database(connection, dbname):
    """Drop the database used by BigchainDB.

    Args:
        dbname (str): the name of the database to drop.

    Raises:
        :exc:`~DatabaseDoesNotExist`: If the given :attr:`dbname` does not
            exist as a database.
    """

    raise NotImplementedError
Drop the database used by BigchainDB.

Args:
dbname (str): the name of the database to drop.

Raises:
:exc:`~DatabaseDoesNotExist`: If the given :attr:`dbname` does not
exist as a database.
bigchaindb/backend/schema.py