feat: add new functions

keep/functions/__init__.py

@@ -15,37 +15,38 @@ def all(iterable) -> bool:
     g = groupby(iterable)
     return next(g, True) and not next(g, False)
 
-
 def diff(iterable: iter) -> bool:
     # Opposite of all - returns True if any element is different
     return not all(iterable)
 
-
 def len(iterable=[]) -> int:
     return _len(iterable)
 
+def uppercase(string) -> str:
+    return string.upper()
+
+def lowercase(string) -> str:
+    return string.lower()
 
 def split(string, delimeter) -> list:
     return string.strip().split(delimeter)
 
-
 def strip(string) -> str:
     return string.strip()
 
-
 def first(iterable):
     return iterable[0]
 
+def last(iterable):
+    return iterable[-1]
 
 def utcnow() -> datetime.datetime:
     dt = datetime.datetime.now(datetime.timezone.utc)
     return dt
 
-
 def utcnowiso() -> str:
     return utcnow().isoformat()
 
-
 def substract_minutes(dt: datetime.datetime, minutes: int) -> datetime.datetime:
     """
     Substract minutes from a datetime object
@@ -59,28 +60,23 @@ def substract_minutes(dt: datetime.datetime, minutes: int) -> datetime.datetime:
     """
     return dt - datetime.timedelta(minutes=minutes)
 
-
 def to_utc(dt: datetime.datetime | str) -> datetime.datetime:
     if isinstance(dt, str):
         dt = parser.parse(dt)
     utc_dt = dt.astimezone(pytz.utc)
     return utc_dt
 
-
 def datetime_compare(t1, t2) -> float:
     diff = (t1 - t2).total_seconds() / 3600
     return diff
 
-
 def json_dumps(data: str | dict) -> str:
     if isinstance(data, str):
         data = json.loads(data)
     return json.dumps(data, indent=4, default=str)
 
-
 def encode(string) -> str:
     return urllib.parse.quote(string)
 
-
 def dict_to_key_value_list(d: dict) -> list:
     return [f"{k}:{v}" for k, v in d.items()]