/**
     * Returns values added by {@link #onlyForConfigurations}.
     */
    @Nullable
    Set<String> getIncludedConfigurations();

    /**
     * Returns values added by {@link #notForConfigurations}
     */
    @Nullable
    Set<String> getExcludedConfigurations();

    /**
     * Returns value added by {@link #onlyForAttribute}
     */
    @Nullable

     * set of configurations. Defaults to any configuration
     *
     * @param configurationNames the names of the configurations the repository will not be used for
     */
    void notForConfigurations(String... configurationNames);

    /**
     * Declares that this repository will only be searched if the consumer requires a
     * specific attribute.
     * @param attribute the attribute

                module('org:foo:1.0')
            }
        }

        where:
        notation << [
                'onlyForConfigurations("other")',
                'notForConfigurations("conf")'
        ]
    }

    @ToBeFixedForConfigurationCache(because = "task uses Configuration API")

            includedConfigurations = new HashSet<>();
        }
        Collections.addAll(includedConfigurations, configurationNames);
    }

    @Override
    public void notForConfigurations(String... configurationNames) {
        if (excludedConfigurations == null) {
            excludedConfigurations = new HashSet<>();
        }
        Collections.addAll(excludedConfigurations, configurationNames);