export type RunMatFsFileType = "file" | "dir" | "directory" | "symlink" | "other" | "unknown";
export interface RunMatFilesystemMetadata {
    fileType: RunMatFsFileType;
    len: number;
    modified?: number;
    readonly?: boolean;
}
export interface RunMatFilesystemDirEntry {
    path: string;
    fileName: string;
    fileType?: RunMatFsFileType;
}
export type RunMatMaybePromise<T> = T | Promise<T>;
export interface RunMatOpenFileDialogFilter {
    patterns: string[];
    description?: string;
}
export interface RunMatOpenFileDialogRequest {
    title?: string;
    defaultPath?: string;
    filters: RunMatOpenFileDialogFilter[];
    multiselect: boolean;
}
export interface RunMatOpenFileDialogSelection {
    paths: string[];
    filterIndex?: number;
}
export interface RunMatFilesystemProvider {
    readFile(path: string): RunMatMaybePromise<Uint8Array | ArrayBuffer>;
    readMany?(paths: string[]): RunMatMaybePromise<Array<Uint8Array | ArrayBuffer | null>>;
    writeFile(path: string, data: Uint8Array | ArrayBuffer | ArrayBufferView): RunMatMaybePromise<void>;
    removeFile(path: string): RunMatMaybePromise<void>;
    metadata(path: string): RunMatMaybePromise<RunMatFilesystemMetadata>;
    symlinkMetadata?(path: string): RunMatMaybePromise<RunMatFilesystemMetadata>;
    readDir(path: string): RunMatMaybePromise<RunMatFilesystemDirEntry[]>;
    canonicalize?(path: string): RunMatMaybePromise<string>;
    createDir?(path: string): RunMatMaybePromise<void>;
    createDirAll?(path: string): RunMatMaybePromise<void>;
    removeDir?(path: string): RunMatMaybePromise<void>;
    removeDirAll?(path: string): RunMatMaybePromise<void>;
    rename?(from: string, to: string): RunMatMaybePromise<void>;
    setReadonly?(path: string, readonly: boolean): RunMatMaybePromise<void>;
    selectFileOpen?(request: RunMatOpenFileDialogRequest): RunMatMaybePromise<RunMatOpenFileDialogSelection | string | string[] | null | undefined | false>;
}
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