only matplotlib, numpy, and pandas allowed.

csv sample:

Date	generation
2022-01-01 0:00	1671.13
2022-01-01 1:00	1698.46
2022-01-01 2:00	1707.5
2022-01-01 3:00	1723.35
2022-01-01 4:00	1514.91
2022-01-01 5:00	1326.99
2022-01-01 6:00	1391.01
2022-01-01 7:00	1302.22
2022-01-01 8:00	1222.87

Plot the first 48 rows of DataFrame wind for the columns "hour_sin" and "hour_cos" (row number 48 is exclusive) on the same figure. Add a title, xlabel, and egend to your graph. Make sure your line plots are distinguisable