message: type def tweak
diff: @@ -56,10 +56,7 @@ export const enum MoleculeType {
  saccharide
  }
  -const AtomRole = {
  - trace: '', direction: '', backboneStart: '', backboneEnd: ''
  -}
  -export type AtomRole = keyof typeof AtomRole
  +export type AtomRole = 'trace' | 'direction' | 'backboneStart' | 'backboneEnd'
  export const MoleculeTypeAtomRoleId: { [k: number]: { [k in AtomRole]: string } } = {
  [MoleculeType.protein]: {
  