public void appendRequired(final @NonNull CommandComponent<?> argument) {
            this.builder.append(this.requiredPrefix());
            this.appendName(argument.name());
            this.builder.append(this.requiredSuffix());
        }
Append a required argument

@param argument Required argument
cloud-core/src/main/java/org/incendo/cloud/syntax/StandardCommandSyntaxFormatter.java