/**
 * Solana-specific converter functions for API response transformation
 */
export declare const apiToNumber: (value: unknown) => number;
export declare const apiToBigInt: (value: unknown) => bigint | undefined;
/**
 * Ensure value is a string
 */
export declare const ensureString: (value: unknown) => string;
/**
 * Ensure value is a number
 */
export declare const ensureNumber: (value: unknown) => number;
/**
 * Ensure value is a boolean
 */
export declare const ensureBoolean: (value: unknown) => boolean;
/**
 * Convert base58 string to Uint8Array
 */
export declare const base58ToBytes: (value: unknown) => Uint8Array;
/**
 * Convert base58 string to Uint8Array, returns undefined if invalid
 */
export declare const maybeBase58ToBytes: (value: unknown) => Uint8Array | undefined;
/**
 * Convert Uint8Array to base58 string
 */
export declare const bytesToBase58: (bytes: Uint8Array) => string;
/**
 * Convert base64 string to Uint8Array
 */
export declare const base64ToBytes: (value: unknown) => Uint8Array;
/**
 * Convert base64 string to Uint8Array, returns undefined if invalid
 */
export declare const maybeBase64ToBytes: (value: unknown) => Uint8Array | undefined;
/**
 * Convert Uint8Array to base64 string
 */
export declare const bytesToBase64: (bytes: Uint8Array) => string;
/**
 * Normalize Solana public key (validate base58 and length = 32 bytes)
 */
export declare const normalizePubkey: (pubkey: unknown) => string;
/**
 * Normalize Solana signature (validate base58)
 */
export declare const normalizeSignature: (signature: unknown) => string;
/**
 * Decode Solana account data which can be in different formats
 * Handles both tuple format [data, encoding] and jsonParsed format
 */
export declare const decodeAccountData: (value: unknown) => Uint8Array | unknown;
/**
 * Create a converter for nested objects
 */
export declare function createNestedConverter<T>(codec: {
    create: (data: unknown) => T;
}): (value: unknown) => T;
/**
 * Create a converter for arrays of nested objects
 */
export declare function createArrayConverter<T>(codec: {
    create: (data: unknown) => T;
}): (value: unknown) => T[];