export declare class BinaryWriter {
    private buf;
    private pos;
    constructor(capacity?: number);
    private ensure;
    writeUInt8(value: number): void;
    writeUInt16(value: number): void;
    writeUInt32(value: number): void;
    writeUInt64(value: bigint): void;
    writeInt8(value: number): void;
    writeInt16(value: number): void;
    writeInt32(value: number): void;
    writeInt64(value: bigint): void;
    writeInt128(value: bigint): void;
    writeInt256(value: bigint): void;
    writeFloat32(value: number): void;
    writeFloat64(value: number): void;
    writeBool(value: boolean): void;
    writeVarUInt(value: number | bigint): void;
    writeString(value: string): void;
    writeFixedString(value: Buffer, length: number): void;
    writeRawBytes(data: Buffer): void;
    getBuffer(): Buffer;
    get length(): number;
    reset(): void;
}