def _setSelectAll(self) -> None:
"""
Sets up widgets to select all sentences.
:return:
"""
grid: Grid = Grid()
grid.set_halign(Align.END)
self._subtitles_grid.attach(grid, 0, 2, 1, 1)
lbl: Label = Label(label='Select all')
setMargin(lbl, 5)
grid.attach(lbl, 0, 0, 1, 1)
all_vid_toggle: CheckButton = CheckButton()
all_vid_toggle.set_halign(Align.CENTER)
all_vid_toggle.connect('toggled', self._onAllVideosToggled)
setMargin(all_vid_toggle, 5)
grid.attach(all_vid_toggle, 1, 0, 1, 1)
lbl2: Label = Label(label='Videos')
setMargin(lbl2, 5)
grid.attach(lbl2, 1, 1, 1, 1)
all_audio_toggle: CheckButton = CheckButton()
all_audio_toggle.set_halign(Align.CENTER)
all_audio_toggle.connect('toggled', self._onAllAudiosToggled,
all_vid_toggle)
setMargin(all_audio_toggle, 5)
grid.attach(all_audio_toggle, 2, 0, 1, 1)
lbl3: Label = Label(label='Audios')
setMargin(lbl3, 5)
grid.attach(lbl3, 2, 1, 1, 1)
all_img_toggle: CheckButton = CheckButton()
all_img_toggle.set_halign(Align.CENTER)
all_img_toggle.connect('toggled', self._onAllImagesToggled)
setMargin(all_img_toggle, 5)
grid.attach(all_img_toggle, 3, 0, 1, 1)
lbl4: Label = Label(label='Snapshot')
setMargin(lbl4, 5)
grid.attach(lbl4, 3, 1, 1, 1)
