ts kata goals

• simple types via method parameters; kata1.test.ts
  • number, string, boolean, any
• object types
• optional fields
• enum
• function types
• interface
• extend another type
• types that omit a field from another type
  • export type WithoutId<T extends HasId> = Omit<T, "id">;
• whatever this is:

  export type LabelsFor<T> = {
    [key in keyof T]: T[key] extends object ? LabelsFor<T[key]> : string | LabelDefinition | null
  }