import type { Token, TokenExtended } from '@lifi/sdk';
import type { FormType } from '../stores/form/types.js';
import type { TokensByChain } from '../types/token.js';
import type { WidgetChains, WidgetTokens } from '../types/widget.js';
/**
 * Merges verified tokens with search tokens.
 * Verified tokens take priority - search tokens are only added if they don't already exist.
 */
export declare const mergeVerifiedWithSearchTokens: (verifiedTokens?: TokensByChain, searchTokens?: TokensByChain) => TokensByChain | undefined;
/**
 * Updates a token in the cache by chainId and address.
 * Returns a new cache object with the token updated, or the original if not found.
 */
export declare const updateTokenInCache: (data: TokensByChain | undefined, token: Token) => TokensByChain | undefined;
export declare const filterAllowedTokens: (dataTokens: {
    [chainId: number]: TokenExtended[];
} | undefined, configTokens?: WidgetTokens, chainsConfig?: WidgetChains, formType?: FormType) => {
    [chainId: number]: TokenExtended[];
} | undefined;