export declare enum TimeCommand {
    Init = "Init",
    Start = "Start",
    Pause = "Pause",
    Update = "Update",
    Stop = "Stop",
    Reset = "Reset"
}
/**
 * Message to control the simulation time: start/stop/pause the simulation, and
 * specify time and speed of it.
 */
export interface ITimeControl {
    /** The type of command to switch the state of the time-service. */
    command: TimeCommand;
    /**
     * Optional UNIX Epoch time in milliseconds marking the fictive date and time the
     * session should run with.
     */
    simulationTime?: null | undefined | number;
    /**
     * Optional speed factor to run the simulation. The range of this speed factor is
     * [0, infinity).
     */
    simulationSpeed?: null | undefined | number;
}