initMutationEvent method Null safety

void initMutationEvent(
  1. String? type,
  2. bool? bubbles,
  3. bool? cancelable,
  4. Node? relatedNode,
  5. String? prevValue,
  6. String? newValue,
  7. String? attrName,
  8. int? attrChange
)

Implementation

void initMutationEvent(
    String? type,
    bool? bubbles,
    bool? cancelable,
    Node? relatedNode,
    String? prevValue,
    String? newValue,
    String? attrName,
    int? attrChange) native;