##### Page.emulate_media() - `Page.emulate_media()` -> NoneType - - `color_scheme`: `"light"|"dark"|"no-preference"|"null" (optional)` - - `forced_colors`: `"active"|"none"|"null" (optional)` - - `media`: `"screen"|"print"|"null" (optional)` - - `reduced_motion`: `"reduce"|"no-preference"|"null" (optional)` -