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import {  Subscription} from "./Subscription.ts";
/** * An Observer is used to receive data from an Observable, * and is supplied as an argument to subscribe. */export interface Observer<Value = unknown> {  /**   * Receives the subscription object when `subscribe` is called   * @param subscription the subscription object   */  start?(subscription: Subscription): void;
  /**   * Receives the next value in the sequence   * @param value the next value in the sequence   */  next?(value: Value): void;
  /**   * Receives the next error in the sequence   * @param errorValue the next error in the sequence   */  error?(errorValue: unknown): void;
  /**   * Receives a notification signaling that the sequence is completed   */  complete?(): void;}