import { Message } from "../process/Types";
import { BitStream } from "../serialization/BitStream";
/** These flags are used to encode the presence of optional fields in a Message */
export declare enum MessageFlags {
    None = 0,
    Reply = 1,
    Edited = 2,
    Text = 4,
    Words = 8,
    Emojis = 16,
    Attachments = 32,
    Reactions = 64,
    Mentions = 128,
    Domains = 256
}
/** Defines how many bits are used for various fields in a Message */
export interface MessageBitConfig {
    dayBits: number;
    authorIdxBits: number;
    wordIdxBits: number;
    emojiIdxBits: number;
    mentionsIdxBits: number;
    domainsIdxBits: number;
}
/**
 * Default bit configuration for messages.
 * At the start we don't know how many authors, words, emojis, etc. we have, so we have to use a conservative
 * configuration that works for all possible values.
 *
 * These values are hand-picked.
 */
export declare const DefaultMessageBitConfig: MessageBitConfig;
/** Writes the message into the stream using the provided bit configuration */
export declare const writeMessage: (message: Message, stream: BitStream, bitConfig: MessageBitConfig) => void;
/**
 * Reads a whole message from the stream using the provided bit configuration.
 * If you don't need all the fields, you may want to use the `MessageView` class instead.
 */
export declare const readMessage: (stream: BitStream, bitConfig: MessageBitConfig) => Message;