{"schema": "cks-public-reference/v1", "entry": {"id": "api-3d3733a954c6f6", "name": "IsNull", "member": "IsNull", "family": "Global", "returns": "bool", "args": ["str"], "kind": "function", "signature": "bool IsNull(str)", "language": "en", "summary": "Checks whether the string pointer is null. A nonnull string also undergoes reference-count cleanup.", "notes": null, "examples": [], "technical": true, "description_status": "documented"}}