backingModule.dependsOn(attributes, module);
        return t();
    }

    @Override
    public T excludeFromConfig(String group, String module, String conf) {
        backingModule.excludeFromConfig(group, module, conf);
        return t();
    }

    @Override
    public T dependencyConstraint(Module module) {
        backingModule.dependencyConstraint(module);

    /**
     * Responsible for exclusions at configuration level
     * @param group
     * @param module
     * @param configuration
     * @return
     */
    IvyModule excludeFromConfig(String group, String module, String configuration);

    /**
     * Options:
     *  name
     *  type
     *  classifier
     *  conf
     */
    IvyModule artifact(Map<String, ?> options);

        return this
    }

    IvyFileModule exclude(Map<String, ?> attributes) {
        configurationExcludes.add(attributes)
        return this
    }

    IvyFileModule excludeFromConfig(String group, String module, String configuration) {
        Map<String, ?> allAttrs = [organisation: group, module: module, conf: configuration]
        configurationExcludes.add allAttrs
        return this
    }