Create the migration repository data store.

def create_repository(self):
        """
        Create the migration repository data store.
        """
        schema = self.get_connection().get_schema_builder()

        with schema.create(self._table) as table:
            # The migrations table is responsible for keeping track of which of the
            # migrations have actually run for the application. We'll create the
            # table to hold the migration file's path as well as the batch ID.
            table.string("migration")
            table.integer("batch")