import type { SignerConfig } from '../types/signers';
/**
 * Environment detection utilities for warning about unsafe usage patterns
 */
/**
 * Detect if code is running in a browser environment
 */
export declare function isBrowserEnvironment(): boolean;
/**
 * Check if we're in a Node.js server environment
 */
export declare function isNodeEnvironment(): boolean;
/**
 * Validate baseUrl format
 */
export declare function validateBaseUrl(baseUrl?: string): void;
/**
 * Validate Ethereum address format
 */
export declare function validateEthereumAddress(address: string): void;
/**
 * Validate vault ID
 */
export declare function validateVaultId(vaultId: string): void;
/**
 * Safe number conversion with bounds checking
 */
export declare function toSafeNumber(value: unknown, fieldName: string): number;
/**
 * Extended config with security options
 */
export interface SignerSecurityConfig extends SignerConfig {
    /**
     * Enable debug logging for security-related checks
     * @default false
     */
    debugSecurity?: boolean;
}
/**
 * Validate signer configuration
 */
export declare function validateSignerConfig(config: SignerSecurityConfig): void;
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