import { Address } from "../types";
/**
 * Type guard to check if an address is valid and non-empty after trimming.
 * Note: This function checks if the trimmed value of the address is valid, but does not guarantee that the input address itself is trimmed.
 * If you require a trimmed address, use `getValidAddress(address)` to obtain the trimmed value.
 * @param address The address to validate
 * @returns true if the trimmed address is valid and non-empty, false otherwise.
 * @remarks
 * This type guard only ensures that the trimmed value is a valid Address. The original input may still contain leading or trailing whitespace.
 */
export declare const isValidAddress: (address: Address | null | undefined) => address is Address;
/**
 * Validates and returns a trimmed valid address.
 * This function trims the input address and validates it, returning the trimmed value if valid.
 * @param address The address to validate and trim
 * @returns The trimmed address if valid, null otherwise
 * @remarks
 * This function is the preferred way to get a validated, trimmed address for use in your application.
 */
export declare const getValidAddress: (address: Address | null | undefined) => string | null;
/**
 * Checks if an address is in the blocked list and should not emit events.
 * Blocked addresses include the zero address and dead address which are not normal user addresses.
 * @param address The address to check
 * @returns true if the address is blocked, false otherwise
 */
export declare const isBlockedAddress: (address: Address | null | undefined) => boolean;
export declare const toChecksumAddress: (address: Address) => string;
/**
 * Validates an EVM address and returns it in checksummed format.
 * @param address The address to validate
 * @returns The checksummed address or undefined if invalid
 */
export declare const validateAndChecksumAddress: (address: string) => Address | undefined;
/**
 * Validates an address for both EVM and Solana chains.
 * For EVM addresses, returns checksummed format.
 * For Solana addresses, returns the Base58 address as-is.
 *
 * When chainId is explicitly provided, validation is strict:
 * - Solana chainId → only Solana validation
 * - Non-Solana chainId → only EVM validation
 * When chainId is omitted, EVM is tried first with Solana fallback.
 *
 * @param address The address to validate
 * @param chainId Optional chain ID to determine address type
 * @returns The validated address or undefined if invalid
 */
export declare const validateAddress: (address: string, chainId?: number) => Address | undefined;
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