}
func (c *Client) SetActivities(ctx context.Context, activities []Activity, startOfDay time.Time) error {
}
func (c *Client) SetActivities(ctx context.Context, activities []Activity, startOfDay time.Time) error {
dataStreamID := DataStreamID(&fitness.DataSource{
DataType: &fitness.DataType{
Name: dataTypeNameActivitySegment,
dataStreamID := DataStreamID(&fitness.DataSource{
DataType: &fitness.DataType{
Name: dataTypeNameActivitySegment,