type Options = {
  indent_size: number,
  indent_char: string,
  eol: string,
  indent_level: number,
  indent_with_tabs: boolean,
  preserve_newlines: boolean,
  max_preserve_newlines: number,
  jslint_happy: boolean,
  space_after_anon_function: boolean,
  brace_style: "collapse",
  keep_array_indentation: boolean,
  keep_function_indentation: boolean,
  space_before_conditional: boolean,
  break_chained_methods: boolean,
  eval_code: boolean,
  unescape_strings: boolean,
  wrap_line_length: number,
  wrap_attributes: string,
  wrap_attributes_indent_size: number,
  end_with_newline: boolean,
};

declare module "js-beautify" {
  declare var default_options: Options;
  declare function html(htmlString: string, options: Options): string;
}
