How to use the pulsectl._pulsectl.PA_EXT_STREAM_RESTORE_INFO function in pulsectl

def struct_from_value( cls, name, volume,
			channel_list=None, mute=False, device=None ):
		'Same arguments as with class instance init.'
		chan_map = c.PA_CHANNEL_MAP()
		if not channel_list: c.pa.channel_map_init_mono(chan_map)
		else:
			if not is_str(channel_list):
				channel_list = b','.join(map(c.force_bytes, channel_list))
			c.pa.channel_map_parse(chan_map, channel_list)
		if not isinstance(volume, PulseVolumeInfo):
			volume = PulseVolumeInfo(volume, chan_map.channels)
		struct = c.PA_EXT_STREAM_RESTORE_INFO(
			name=c.force_bytes(name),
			mute=int(bool(mute)), device=c.force_bytes(device),
			channel_map=chan_map, volume=volume.to_struct() )
		return struct

def stream_restore_write( obj_name_or_list,
			mode='merge', apply_immediately=False, **obj_kws ):
		'''Update module-stream-restore db entry for specified name.
			Can be passed PulseExtStreamRestoreInfo object or list of them as argument,
				or name string there and object init keywords (e.g. volume, mute, channel_list, etc).
			"mode" is PulseUpdateEnum value of
				'merge' (default), 'replace' or 'set' (replaces ALL entries!!!).'''
		mode = PulseUpdateEnum[mode]._c_val
		if is_str(obj_name_or_list):
			obj_name_or_list = PulseExtStreamRestoreInfo(obj_name_or_list, **obj_kws)
		if isinstance(obj_name_or_list, PulseExtStreamRestoreInfo):
			obj_name_or_list = [obj_name_or_list]
		# obj_array is an array of structs, laid out contiguously in memory, not pointers
		obj_array = (c.PA_EXT_STREAM_RESTORE_INFO * len(obj_name_or_list))()
		for n, obj in enumerate(obj_name_or_list):
			obj_struct, dst_struct = obj.to_struct(), obj_array[n]
			for k,t in obj_struct._fields_: setattr(dst_struct, k, getattr(obj_struct, k))
		return mode, obj_array, len(obj_array), int(bool(apply_immediately))

[POINTER(PA_CONTEXT), c_uint32, PA_CONTEXT_SUCCESS_CB_T, c_void_p] ),
		pa_context_subscribe=( 'pa_op',
			[POINTER(PA_CONTEXT), c_int, PA_CONTEXT_SUCCESS_CB_T, c_void_p] ),
		pa_context_set_subscribe_callback=[POINTER(PA_CONTEXT), PA_SUBSCRIBE_CB_T, c_void_p],
		pa_context_play_sample=( 'pa_op',
			[POINTER(PA_CONTEXT), c_str_p, c_str_p, c_uint32, PA_CONTEXT_SUCCESS_CB_T, c_void_p] ),
		pa_context_play_sample_with_proplist=( 'pa_op',
			[ POINTER(PA_CONTEXT), c_str_p, c_str_p, c_uint32,
				POINTER(PA_PROPLIST), PA_CONTEXT_SUCCESS_CB_T, c_void_p ] ),

		pa_ext_stream_restore_test=( 'pa_op',
			[POINTER(PA_CONTEXT), PA_EXT_STREAM_RESTORE_TEST_CB_T, c_void_p] ),
		pa_ext_stream_restore_read=( 'pa_op',
			[POINTER(PA_CONTEXT), PA_EXT_STREAM_RESTORE_READ_CB_T, c_void_p] ),
		pa_ext_stream_restore_write=( 'pa_op', [
			POINTER(PA_CONTEXT), c_int, POINTER(PA_EXT_STREAM_RESTORE_INFO),
			c_uint, c_int, PA_CONTEXT_SUCCESS_CB_T, c_void_p ] ),
		pa_ext_stream_restore_delete=( 'pa_op',
			[POINTER(PA_CONTEXT), POINTER(c_char_p), PA_CONTEXT_SUCCESS_CB_T, c_void_p] ),

		pa_proplist_from_string=([c_str_p], POINTER(PA_PROPLIST)),
		pa_proplist_iterate=([POINTER(PA_PROPLIST), POINTER(c_void_p)], c_str_p),
		pa_proplist_gets=([POINTER(PA_PROPLIST), c_str_p], c_str_p),
		pa_proplist_free=[POINTER(PA_PROPLIST)],

		pa_channel_map_init_mono=(
			[POINTER(PA_CHANNEL_MAP)], (POINTER(PA_CHANNEL_MAP), 'not_null') ),
		pa_channel_map_init_stereo=(
			[POINTER(PA_CHANNEL_MAP)], (POINTER(PA_CHANNEL_MAP), 'not_null') ),
		pa_channel_map_snprint=([c_str_p, c_int, POINTER(PA_CHANNEL_MAP)], c_str_p),
		pa_channel_map_parse=(
			[POINTER(PA_CHANNEL_MAP), c_str_p], (POINTER(PA_CHANNEL_MAP), 'not_null') ),