/**
 * WASM Runtime Module
 *
 * WASM-backed runtime implementation for llmswitch-core integration.
 * Provides shadow/primary dual-loading, priority matrix, and switch capabilities.
 */
export type WasmRuntimeMode = 'shadow' | 'primary' | 'split';
export interface WasmRuntimeConfig {
    mode: WasmRuntimeMode;
    wasmPath?: string;
    fallbackOnError?: boolean;
    shadowTimeoutMs?: number;
}
export interface WasmRuntimeMetrics {
    requestsTotal: number;
    requestsShadow: number;
    errorsTotal: number;
    shadowLatencyMs: number;
    lastError?: string;
}
/**
 * WASM Runtime instance interface
 */
export interface WasmRuntime {
    readonly mode: WasmRuntimeMode;
    readonly isReady: boolean;
    readonly metrics: WasmRuntimeMetrics;
    /**
     * Initialize the WASM runtime
     */
    initialize(): Promise<void>;
    /**
     * Shutdown the WASM runtime
     */
    shutdown(): Promise<void>;
}
/**
 * WASM Runtime factory options
 */
export interface WasmRuntimeFactoryOptions {
    config: WasmRuntimeConfig;
    onError?: (error: Error) => void;
    onMetricsUpdate?: (metrics: WasmRuntimeMetrics) => void;
}
/**
 * Create a new WASM runtime instance
 */
export declare function createWasmRuntime(options: WasmRuntimeFactoryOptions): WasmRuntime;
/**
 * Default WASM runtime configuration
 */
export declare function getDefaultWasmRuntimeConfig(): WasmRuntimeConfig;
/**
 * Resolve WASM runtime mode from environment
 */
export declare function resolveWasmRuntimeModeFromEnv(): WasmRuntimeMode;