code: public static <RT, T> ReflectMethod<RT, T> of(Class<RT> receiverType, Class<T> returnType, String methodName) {
  		return new ReflectMethod<>(receiverType, returnType, methodName);
  	}
docs: Static constructor.
  
  @param <RT> the type of the receiver.
  @param <T> the type of the returned value.
  @param receiverType the type of the receiver.
  @param returnType the type of the returned values.
  @param methodName the name of the method.
  @return the instance.