Hi guys, I stumbled upon a typo in [graph-types.js](https://github.com/neo4j/neo4j-javascript-driver/blob/4.3/src/graph-types.js) for the method [isUnboundRelationship](https://github.com/neo4j/neo4j-javascript-driver/blob/4.3/src/graph-types.js#L256-L258): ```javascript function isUnboundRelationship (obj) { return hasIdentifierProperty(obj, UNBOUNT_RELATIONSHIP_IDENTIFIER_PROPERTY) } ``` The constant is misspelled as UNBOUN**T** instead of the actual definition of the [constant](https://github.com/neo4j/neo4j-javascript-driver/blob/4.3/src/graph-types.js#L29) as UNBOUN**D**: ```javascript const UNBOUND_RELATIONSHIP_IDENTIFIER_PROPERTY = '__isUnboundRelationship__' ``` Best regards Chris