in src/main/java/com/awslabs/iot/client/commands/interfaces/CommandHandler.java [91:96]
default boolean parametersSpecified(String input) {
List<String> parameters = getParameterExtractor().getParameters(input);
int parameterCount = parameters.size();
return (requiredParameters() == parameterCount) ||
((maximumParameters().isDefined()) && (parameterCount >= requiredParameters()));
}