docs: public static AccessorPrefix determineAccessorPrefix(@Nonnull final String methodName) {
  		Check.notEmpty(methodName, "methodName");
  		final Matcher m = PATTERN.matcher(methodName);
  		Check.stateIsTrue(m.find(), "passed method name '%s' is not applicable", methodName);
  		return new AccessorPrefix(m.group(1));
  	}