def METHOD_NAME(self, migration_name):
    """
    Apply a migration function to the importer's datasets.
    This method applies a given migration function to the importer's datasets, using `migrate_datasets`. The
    migration function must be specified by name in the `migrations` dictionary.
    Parameters
    ----------
    migration_name : str
        The name of the migration function to apply to the importer's datasets.
    Returns
    -------
    None
        Modifies the importer's data in place.
    Raises
    ------
    AssertionError
        If the specified migration function is not in the `migrations` dictionary.
    """
    assert migration_name in migrations, "Can't find migration {}".format(
        migration_name
    )
    self.apply_strategy(
        functools.partial(migrate_datasets, migration=migration_name)
    )