/// <reference types="react" />
/**
 * @internal
 */
export declare const KeyCodes: Readonly<{
    BACKSPACE: 8;
    TAB: 9;
    ENTER: 13;
    ALT: 18;
    ESCAPE: 27;
    SPACE: 32;
    PAGE_UP: 33;
    PAGE_DOWN: 34;
    END: 35;
    HOME: 36;
    LEFT: 37;
    UP: 38;
    RIGHT: 39;
    DOWN: 40;
    DELETE: 46;
    A: 65;
    B: 66;
    C: 67;
    D: 68;
    E: 69;
    F: 70;
    G: 71;
    H: 72;
    I: 73;
    J: 74;
    K: 75;
    L: 76;
    M: 77;
    N: 78;
    O: 79;
    P: 80;
    Q: 81;
    R: 82;
    S: 83;
    T: 84;
    U: 85;
    V: 86;
    W: 87;
    X: 88;
    Y: 89;
    Z: 90;
    F2: 113;
    F3: 114;
    COMMA: 188;
    PERIOD: 190;
    FORWARD_SLASH: 191;
    BACKTICK: 192;
    BACK_SLASH: 220;
}>;
/**
 * @internal
 * OS-aware check for command/ctrl key.
 */
export declare function isCommandModifierKeyEvent(e: KeyboardEvent | React.KeyboardEvent | React.MouseEvent): boolean;