import DataSource from './data-source';
import { Entry, EntryOptions } from './messages';
export default class Writer {
    private dataSource;
    private stream;
    private pending;
    constructor(dataSource: DataSource, stream?: Entry[]);
    /**
     * Creates an entry and appends it to the stream.
     */
    create(type: string, content: any, options?: EntryOptions): Entry;
    /**
     * Appends the provided entry to the stream.
     */
    append(entry: Entry): Entry;
    private readyOptimisticStream;
    /**
     * Creates a patch entry and appends it to the stream.
     */
    update(id: string, content: any, options?: EntryOptions): Entry | null;
    /**
     * Creates an entry with null content and appends it to
     * the stream.
     */
    remove(id: string): boolean;
    /**
     * Writes the stream to the associated `DataSource`.
     */
    commit(): Promise<void>;
}
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