code: public static ArgumentValidator atLeast(final int expectedMin) {
          switch (expectedMin) {
              case 0:
                  return ZERO_OR_MORE;
              case 1:
                  return ONE_OR_MORE;
              case 2:
                  return TWO_OR_MORE;
          }
          return atLeast(expectedMin, MessageFormat.format("{0}..*", expectedMin));
      }
docs: Creates a {@link ArgumentValidator} which checks for _#arguments >= expectedMin_
  
  @param expectedMin the minimum number of expected arguments
  @return the MissingArgumentsValidator