def chrome_options(args = [] of String, extensions = [] of String | IO, binary = nil, debugger_address = nil, page_load_strategy : PageLoadStrategy | Nil = nil, experimental_options = {} of String => String, logging_prefs = {} of String => String, capabilities = {} of String => String) #

def edge_options(args = [] of String, page_load_strategy : PageLoadStrategy | Nil = nil, is_legacy = false, browser_name = nil) #

def firefox_options(args = [] of String, binary = nil, page_load_strategy : PageLoadStrategy | Nil = nil, log_level = nil) #

def ie_options(args = [] of String, browser_attach_timeout = nil, element_scroll_behavior : ElementScrollBehavior | Nil = nil, ensure_clean_session = nil, file_upload_dialog_timeout = nil, force_create_process_api = nil, force_shell_windows_api = nil, full_page_screenshot = nil, ignore_protected_mode_settings = nil, ignore_zoom_level = nil, initial_browser_url = nil, native_events = nil, persistent_hover = nil, require_window_focus = nil, use_per_process_proxy = nil, validate_cookie_document_type = nil, additional_options = {} of String => String) #

def opera_options(args = [] of String, page_load_strategy : PageLoadStrategy | Nil = nil, android_package_name = nil, android_device_socket = nil, android_command_line_file = nil) #

def webkit_gtk_options(args = [] of String, binary = nil, overlay_scrollbars = nil) #

def wpe_webkit_options(args = [] of String, binary = nil) #