@atlaskit/editor-core/src/json-schema/json-schema-nodes/all-of-schema-node.ts

A package contains Atlassian editor core functionality

import SchemaNode from './schema-node';
import OfSchemaNode from './of-schema-node';

export default class AllOfSchemaNode extends OfSchemaNode {
  constructor(values: Array<SchemaNode> = []) {
    super('allOf', values);
  }
}