/**
 * Internal runtime validation for dynamically loaded extension boundaries.
 *
 * Static TypeScript contracts disappear at runtime. These helpers validate the
 * small set of values that cross dynamic module and registry boundaries while
 * containing hostile accessors behind contextual TypeErrors.
 */
export type ZeroArgumentConstructor<T> = new () => T;
/** Require a non-empty string without hidden surrounding whitespace. */
export declare function assertCanonicalNonEmptyString(value: unknown, label: string): asserts value is string;
/** Read and validate a zero-argument constructor from a dynamic module. */
export declare function getConstructibleModuleExport<T>(extensionModule: unknown, moduleName: string, exportName: string): ZeroArgumentConstructor<T>;
/** Validate the required method surface of a dynamically constructed value. */
export declare function assertRequiredMethods(instance: unknown, moduleName: string, exportName: string, methodNames: readonly string[]): void;
/** Capture a registry entry's identity exactly once. */
export declare function captureRegistrationId(value: unknown, registrationName: string): string;
/** Require a callable method on a registry entry. */
export declare function assertRegistrationMethod(value: unknown, registrationName: string, methodName: string): void;
/** Validate an optional method when a registry entry supplies it. */
export declare function assertOptionalRegistrationMethod(value: unknown, registrationName: string, methodName: string): void;
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