core/src/main/java/org/trimou/engine/config/ConfigurationExtensions.java
public static void registerHelper(ConfigurationExtensionBuilder builder, String name, Helper helper) {
        Checker.checkArgumentsNotNull(builder, name, helper);
        try {
            builder.registerHelper(name, helper);
        } catch (IllegalArgumentException ignored) {
        }
    }
public static void registerHelper(ConfigurationExtensionBuilder builder, String name, Helper helper) {
        Checker.checkArgumentsNotNull(builder, name, helper);
        try {
            builder.registerHelper(name, helper);
        } catch (IllegalArgumentException ignored) {
        }
    }
Register helpers and do nothing if a helper with the same name is already registered.

@param builder
@param name
@param helper