@ember-data/record-data/addon/-private/index.ts

export { default as RecordData } from './record-data';
export { default as Relationship } from './relationships/state/relationship';
export { default as BelongsToRelationship } from './relationships/state/belongs-to';
export { default as ManyRelationship } from './relationships/state/has-many';
export { relationshipStateFor, relationshipsFor } from './record-data-for';