import { AmdCommand } from '../svaml-commands/amd-command';
import { CommandInput } from './command-input';
/** Event handlers for one `amd` command. Each accepts one command, a list, or a sequence callback. */
export interface AmdParameters {
    /** Commands to run when a human answers. */
    onHuman?: CommandInput;
    /** Commands to run when a machine answers. */
    onMachine?: CommandInput;
    /** Commands to run when a beep is detected. */
    onBeep?: CommandInput;
    /** Commands to run when the result is unknown. */
    onUnknown?: CommandInput;
}
/**
 * Builds an `amd` command. Event callbacks stack commands each time they are called.
 */
export declare class AmdCreator {
    private readonly events;
    onHuman(build: CommandInput): this;
    onMachine(build: CommandInput): this;
    onBeep(build: CommandInput): this;
    onUnknown(build: CommandInput): this;
    build(): AmdCommand;
}
/**
 * Builds one answering-machine detection command.
 */
export declare const Amd: {
    /**
     * Runs answering-machine detection.
     * Each event handler accepts one command, a list, or a sequence callback.
     */
    activate(parameters?: AmdParameters): AmdCommand;
};