/**
 * Utility functions for provider validation and error handling
 */
/**
 * Asserts that a provider is available and throws an error if not
 * @param provider - The provider to validate
 * @param providerName - Human-readable name for error messages
 * @returns The validated provider
 * @throws {Error} If provider is not available
 */
export declare const assertProvider: <T>(provider: T | undefined, providerName: string) => T;
/**
 * Creates a standardized error message for provider operations
 * @param operation - The operation that failed (e.g., 'connect', 'sign message')
 * @param providerName - The name of the provider
 * @param error - The original error
 * @returns A new Error with formatted message
 */
export declare const createProviderError: (operation: string, providerName: string, error: unknown) => Error;