/** @internal */
/** The various different types of IO errors. */
export declare type ErrorCode = "other" | "resource-not-found" | "unexpected-end-of-file" | "write-zero";
/** Represents an error during an I/O operation. */
export declare class IoError extends Error {
    /** The error's code. */
    readonly code: ErrorCode;
}
/** The result from calling for another buffer a single time. */
declare type NextCallbackResult = {
    done: true;
} | {
    done: false;
    value: Uint8Array;
};
/**
 * A generic implementation of a read-to-end algorithm.
 *
 * Reused for resource keys and readable streams.
 */
export declare const readToEndImpl: (nextCallback: () => Promise<NextCallbackResult>, finallyCallback: () => Promise<void> | void, sizeHint?: number) => Promise<Uint8Array>;
export {};