import type { EvalProviderRegistry } from "./registry.js";
/**
 * Dynamically import an eval-provider plugin package and register it.
 *
 * The package must export a `registerEvalProviders(registry)` function that
 * calls `registry.register()` with a single EvalProvider instance.
 * Only one eval-provider plugin may be active at a time.
 *
 * @param specifier - npm package name or local file path
 * @param registry - the EvalProviderRegistry to register into
 * @param options - optional settings
 * @param options.cwd - directory to resolve specifiers from (defaults to `process.cwd()`)
 * @throws if the import fails, the module lacks a register export,
 *         or registration itself throws (e.g. duplicate name)
 */
export declare function loadEvalProviderPlugin(specifier: string, registry: EvalProviderRegistry, options?: {
    cwd?: string;
}): Promise<void>;
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