/**
 * Common converter functions for API response transformation
 */
export declare const apiToNumber: (value: unknown) => number;
export declare const apiToBigInt: (value: unknown) => bigint | undefined;
/**
 * 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 hex string to Uint8Array
 */
export declare const hexToBytes: (value: unknown) => Uint8Array;
/**
 * Convert hex string to Uint8Array, returns undefined if invalid
 */
export declare const maybeHexToBytes: (value: unknown) => Uint8Array | undefined;
/**
 * Convert API value to boolean
 */
export declare const apiToBoolean: (value: unknown) => boolean;
/**
 * Convert API value to Date
 */
export declare const apiToDate: (value: unknown) => Date | undefined;
/**
 * Convert timestamp string to Date
 */
export declare const timestampToDate: (value: unknown) => Date;
/**
 * 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;
/**
 * Ensure value is a Date
 */
export declare const ensureDate: (value: unknown) => Date;
/**
 * Ensure value is a bigint
 */
export declare const ensureBigInt: (value: unknown) => bigint;
/**
 * Ensure value is a Uint8Array (converts from hex string if needed)
 */
export declare const ensureBytes: (value: unknown) => Uint8Array;
/**
 * Convert API value to Uint8Array (handles base64 strings)
 */
export declare const ensureBytesFromBase64: (value: unknown) => Uint8Array;
/**
 * Create a converter that maps values using a lookup table
 */
export declare function createEnumConverter<T>(enumMap: Record<string, T>): (value: unknown) => T | undefined;
/**
 * 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[];