export declare const controllerDevToolsCommandContentType: "application/vnd.agl.devtools-commands.v1";
export declare const controllerDevToolsEventContentType: "application/vnd.agl.devtools-events.v1";
export declare const controllerDevToolsCommandBytes: number;
export declare const controllerDevToolsEventBytes: number;
export declare const controllerDevToolsWriteBytes: number;
/** CDP messages are length-prefixed because they can exceed a logical stream write. */
export declare const encodeControllerDevToolsMessage: (message: string, maximumBytes: number) => Uint8Array;
/** Allocates once per bounded message and accepts arbitrarily fragmented stream chunks. */
export declare class ControllerDevToolsMessageDecoder {
    private maximumBytes;
    private header;
    private headerBytes;
    private body?;
    private bodyBytes;
    private decoder;
    constructor(maximumBytes: number);
    push(chunk: Uint8Array): Generator<string>;
    finish(): void;
}