ParamToCallbacks

export interface ParamToCallbacks<T> { 
  readonly undefined: () => T; 
  readonly bigNumber: (param: BigNumber) => T; 
  readonly string: (param: string) => T; 
  readonly boolean: (param: boolean) => T; 
  readonly array: (param: ParamArray) => T; 
  readonly map: (param: ParamMap) => T; 
  readonly object: (param: ParamObject) => T; 
  readonly forwardValue: (param: ForwardValue) => T; 
}