export declare const DEFAULT_NATIVE_ARTIFACT_MAX_BYTES: number;
export interface NativeBoundedFileReadHooks {
    afterParentChainCaptured?: () => void | Promise<void>;
    afterOpen?: () => void | Promise<void>;
    beforeFinalCheck?: () => void | Promise<void>;
}
export interface NativeBoundedTextFile {
    ref: string;
    size: number;
    hash: string;
    text: string;
}
export interface NativeUnhashedTextFile extends Omit<NativeBoundedTextFile, 'hash'> {
    hash: null;
}
export interface NativeTextFilePrefix {
    ref: string;
    size: number;
    text: string;
    truncated: boolean;
}
interface NativeTextFileReadOptions {
    root: string;
    ref: string;
    maxBytes?: number | null;
    includeHash?: boolean;
    hooks?: NativeBoundedFileReadHooks;
}
interface NativeTextFilePrefixReadOptions {
    root: string;
    ref: string;
    maxBytes: number;
    hooks?: NativeBoundedFileReadHooks;
}
export declare function readNativeBoundedTextFile(options: NativeTextFileReadOptions & {
    includeHash: false;
}): Promise<NativeUnhashedTextFile>;
export declare function readNativeBoundedTextFile(options: NativeTextFileReadOptions & {
    includeHash?: true;
    maxBytes?: number;
}): Promise<NativeBoundedTextFile>;
/**
 * Read a display prefix without making the file's total size the read budget.
 * The returned size comes from the verified open file, while at most maxBytes
 * are read into memory.
 */
export declare function readNativeTextFilePrefix(options: NativeTextFilePrefixReadOptions): Promise<NativeTextFilePrefix>;
export {};
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