declare namespace org {
    namespace spongepowered {
        namespace api {
            namespace data {
                namespace manipulator {
                    namespace immutable {
                        // @ts-ignore
                        interface ImmutablePotionEffectData extends org.spongepowered.api.data.manipulator.immutable.ImmutableListData {
                            /**
                             * Gets the {@link ImmutableListValue} of the {@link PotionEffect}s.
                             */
                            // @ts-ignore
                             effects(): org.spongepowered.api.data.value.immutable.ImmutableListValue;
                        }
                    }
                }
            }
        }
    }
}
