import { RouterInstructions } from './types';
/**
 * With @solana/kit invoking a program and having the account marked as writable results in an error being thrown:
 *
 * > SolanaError: This transaction includes an address (`11111111111111111111111111111111`) which is both invoked and marked writable. Program addresses may not be writable
 *
 * This function always marks system program accounts as read-only as well since it's a surefire way to increase tx costs unnecessarily.
 *
 * There is also a bug in older anchor libs where optional accounts (marked as `none` by sending the programAddress) are marked as writable unnecessarily. This function also works around that issue.
 *
 * @param ixs
 * @returns Instructions with invoked program accounts marked as read-only
 */
export declare function markInvokedProgramAccountsReadonly(ixs: RouterInstructions): RouterInstructions;
//# sourceMappingURL=markInvokedProgramAccountsReadonly.d.ts.map