/**
 * A object that can apply a filter function.
 */
export interface IFilterable<T> {
    /**
     * Returns a Filterable that meets the condition specified in a predicate function.
     *
     * @param predicate The filter method calls the predicate function to check for value(s) that pass.
     * @returns A new Filterable that passed the predicate.
     */
    filter<S extends T>(predicate: (value: T) => value is S): IFilterable<S>;
    /**
     * Returns a Filterable that meets the condition specified in a predicate function.
     *
     * @param predicate The filter method calls the predicate function to check for value(s) that pass.
     * @returns A new Filterable that passed the predicate.
     */
    filter(predicate: (value: T) => boolean): IFilterable<T>;
}