def get_backward_relationships(self, dataframe_name):
        """
        get relationships where dataframe "dataframe_name" is the parent.

        Args:
            dataframe_name (str): Name of dataframe to get relationships for.

        Returns:
            list[:class:`.Relationship`]: list of backward relationships
        """
        return [
            r for r in self.relationships if r._parent_dataframe_name == dataframe_name
        ]

        get relationships where dataframe "dataframe_name" is the parent.

        Args:
            dataframe_name (str): Name of dataframe to get relationships for.

        Returns:
            list[:class:`.Relationship`]: list of backward relationships
        
featuretools/entityset/entityset.py