addRelation method Null safety

void addRelation(
  1. String key,
  2. LCObject value
)

Adds a relation value to key.

Implementation

void addRelation(String key, LCObject value) {
  if (isNullOrEmpty(key)) {
    throw ArgumentError.notNull('key');
  }
  _LCAddRelationOperation op = new _LCAddRelationOperation(value);
  _applyOperation(key, op);
}