A simple example of typescript being helpful

simpleTypescript.ts

interface AssociationConstructor {
  typeName: Association["typeName"];
  methodName: Association["methodName"];
  fieldName?: Association["fieldName"];
}

interface BelongsToConstructor
  extends Omit<AssociationConstructor, "methodName"> {
  fromFieldPath: BelongsTo["fromFieldPath"];
  methodName?: Association["methodName"];
}