Edit File: diagnostic_channel.d.ts
/** * @experimental */ declare module 'diagnostic_channel' { /** * Returns wether a named channel has subscribers or not. */ function hasSubscribers(name: string): boolean; /** * Gets or create a diagnostic channel by name. */ function channel(name: string): Channel; type ChannelListener = (name: string, message: unknown) => void; /** * Simple diagnostic channel that allows */ class Channel { readonly name: string; readonly hashSubscribers: boolean; private constructor(name: string); /** * Add a listener to the message channel. */ subscribe(listener: ChannelListener): void; /** * Removes a previously registered listener. */ unsubscribe(listener: ChannelListener): void; } }
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