Neo4j v4.0.0 CALL db.schema() "ProcedureNotFound" Error

I have 5000 nodes and their relation in my database. but this code shows empty .

please help me

call db.schema.visualization
Table
Text
Code
╒═══════╤═══════════════╕
│"nodes"│"relationships"│
╞═══════╪═══════════════╡

└───────┴───────────────┘