def test_13_get_schema_str(neo4j_store):
    """
    Test the textual representation of the schema.
    """
    e1 = EntityNode(label="PERSON", name="Alice")
    e2 = EntityNode(label="CITY", name="Paris")
    neo4j_store.upsert_nodes([e1, e2])

    # Insert a relationship
    r = Relation(label="VISITED", source_id=e1.id, target_id=e2.id)
    neo4j_store.upsert_relations([r])

    schema_str = neo4j_store.get_schema_str(refresh=True)
    assert "PERSON" in schema_str
    assert "CITY" in schema_str
    assert "VISITED" in schema_str

    Test the textual representation of the schema.
    
llama-index-integrations/graph_stores/llama-index-graph-stores-neo4j/tests/test_pg_stores_neo4j.py