import { ObservableInputTuple, OperatorFunction, SchedulerLike } from '../types';
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import { operate } from '../util/lift';
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import { concatAll } from './concatAll';
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import { popScheduler } from '../util/args';
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import { from } from '../observable/from';
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/** @deprecated Replaced with {@link concatWith}. Will be removed in v8. */
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export function concat<T, A extends readonly unknown[]>(...sources: [...ObservableInputTuple<A>]): OperatorFunction<T, T | A[number]>;
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/** @deprecated Replaced with {@link concatWith}. Will be removed in v8. */
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export function concat<T, A extends readonly unknown[]>(
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...sourcesAndScheduler: [...ObservableInputTuple<A>, SchedulerLike]
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): OperatorFunction<T, T | A[number]>;
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/**
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* @deprecated Replaced with {@link concatWith}. Will be removed in v8.
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*/
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export function concat<T, R>(...args: any[]): OperatorFunction<T, R> {
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const scheduler = popScheduler(args);
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return operate((source, subscriber) => {
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concatAll()(from([source, ...args], scheduler)).subscribe(subscriber);
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});
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}
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