/**
 * The shape the tap needs from MoonPay's `WebViewTransport`. Declared
 * structurally so the wrap can be exercised against a fake, without loading
 * the SDK's react-native-webview dependency under vitest.
 */
export interface TraceableTransport {
    url?: string;
    handleWebViewMessage(data: string): void;
    sendMessage(message: unknown): void;
}
/**
 * Wrap a transport prototype's two message paths. Exported for the test; the
 * SDK's own prototype is wrapped by {@link installMoonPayTrace}.
 */
export declare function traceTransportPrototype(proto: TraceableTransport): void;
/**
 * Installed at import time, which is before the debug tag resolves — so the
 * wrappers check {@link tracingEnabled} per message instead of gating install.
 * Guarded because this runs at module scope on the deposit path: a MoonPay
 * release that drops the export must not take the flow down with it.
 */
export declare function installMoonPayTrace(): void;
/** The script emits into a void unless the wrap above is listening. */
export declare function moonPayTraceInjection(): string | undefined;
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