index.js.flow
b668d486553bdrf-api-tracking

index.js.flow
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			// @flow

			opaque type Next = Function \| void;
			opaque type Yield = mixed;

			export type Gensync<Args, Return> = {
			(...args: Args): Handler<Return>,
			sync(...args: Args): Return,
			async(...args: Args): Promise<Return>,
			// ...args: [...Args, Callback]
			errback(...args: any[]): void,
			};

			export type Handler<Return> = Generator<Yield, Return, Next>;
			export type Options<Args, Return> = {
			sync(...args: Args): Return,
			arity?: number,
			name?: string,
			} & (
			\| { async?: (...args: Args) => Promise<Return> }
			// ...args: [...Args, Callback]
			\| { errback(...args: any[]): void }
			);

			declare module.exports: {
			<Args, Return>(
			Options<Args, Return> \| ((...args: Args) => Handler<Return>)
			): Gensync<Args, Return>,

			all<Return>(Array<Handler<Return>>): Handler<Return[]>,
			race<Return>(Array<Handler<Return>>): Handler<Return>,
			};