unction that takes as input a list of these datetime strings and returns only the date in 'yyyy-mm-dd' format.
def date_parser(dates):
"""
This function takes as input a list of these datetime strings and returns only the date in 'yyyy-mm-dd' format.
Parameters:
-----------
items: (list), list of datetime strings.
Returns:
--------
returns a list of strings where each element in the returned list contains only the date in the 'yyyy-mm-dd' format.
"""
my_list = []
for date in dates:
my_list.append(date)
my_list[:10]
return my_list