export declare const OMP_RPC_CONTRACT_RELEASE: "17.2.1";
export interface OmpRpcDecoderLimits {
    readonly maxPhysicalFrameBytes: number;
    readonly maxReassembledFrameBytes: number;
    readonly maxConcurrentReassemblies: number;
    readonly maxChunksPerFrame: number;
    readonly maxInflightReassemblyBytes: number;
}
export declare const DEFAULT_OMP_RPC_DECODER_LIMITS: OmpRpcDecoderLimits;
export interface OmpRpcInboundFrame {
    readonly type: string;
    readonly [key: string]: unknown;
}
export interface OmpRpcCommand {
    readonly id?: string;
    readonly type: string;
    readonly [key: string]: unknown;
}
export declare class OmpRpcProtocolError extends Error {
    readonly code: string;
    constructor(code: string, message: string);
}
export declare function classifyOmpRpcFrameType(type: string): 'known-pre-negotiation' | 'v2-only' | 'unknown';
export declare function assertNoPreNegotiationRpcChunk(frameType: string, negotiatedV2: boolean): void;
export declare function encodeOmpRpcCommand(command: OmpRpcCommand, maxFrameBytes: number): Buffer;
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