import { Keypair } from '@solana/web3.js'; declare const keypairToSecretKeyJSON: (keypair: Keypair) => string; declare const getKeypairFromFile: (filepath?: string) => Promise; declare const getKeypairFromEnvironment: (variableName: string) => Keypair; declare const addKeypairToEnvFile: (keypair: Keypair, variableName: string, fileName?: string) => Promise; export { addKeypairToEnvFile, getKeypairFromEnvironment, getKeypairFromFile, keypairToSecretKeyJSON };