import * as types from ".";
import * as web3 from "@solana/web3.js";
export declare function sleep(ms: number): Promise<unknown>;
export declare function waitForAccountToExist(solanaConnection: web3.Connection, key: web3.PublicKey, retryOptions?: {
    backoff: number;
    silent: boolean;
    retries: number;
}): Promise<void>;
export declare function _undef<T>(x: T | undefined | null, errorMsg?: string): T;
export declare function dropNull<T>(xs: Array<T | null | undefined>): Array<T>;
export declare type RetryOptions = {
    retries: number;
    backoff?: number;
    silent?: boolean;
};
export declare function retry<T>({ backoff, silent, retries }: types.RetryOptions | undefined, f: (retry?: number) => Promise<T | undefined>): Promise<T>;
export declare const setShouldLog: (val: boolean) => boolean;
export declare let shouldLog: boolean;
export declare function txLogsFact(connection: web3.Connection): (tx: string | web3.VersionedTransactionResponse) => Promise<web3.VersionedTransactionResponse>;
export declare function asyncFilter<T>(arr: Array<T>, predicate: (x: T) => Promise<boolean>): Promise<Array<T>>;
export declare function dbg<T>(x: T, message?: string, toString?: (x: T) => string | T): T;
export declare function info<T>(x: T, message?: string, toString?: (x: T) => string | T): T;
export declare function warn<T>(x: T, message?: string, toString?: (x: T) => string | T): T;
export declare function err<T>(x: T, message?: string, toString?: (x: T) => string | T): T;
export declare function debug_pk_obj<T extends Record<string, any>>(obj: T, msg?: string): T;
export declare function debug_ix(ix: web3.TransactionInstruction, name?: string): web3.TransactionInstruction;
export declare function debug_ix_keys(keys: Array<web3.AccountMeta>, name?: string): Array<web3.AccountMeta>;
export declare function debug_xTokenLocator(token: types.XTokenLocator, msg?: string): void;