Add detailed docstrings for Uuid4 class and its methods to enhance documentation and clarify functionality.

Author: n1nj4t4nuk1

pyvalueobjects/strings/uuid4.py

@@ -5,11 +5,23 @@
 
 
 class Uuid4(NonEmptyString):
+    """
+    A value object representing a UUID version 4 string. Inherits from NonEmptyString and validates that the input is a valid UUID v4 string.
+    """
 
     def __init__(self, value: str):
+        """
+        Initialize the Uuid4 object with the given UUID v4 string value.
+        :param value: A UUID v4 string value.
+        """
         super().__init__(value)
 
     def _validate(self, value):
+        """
+        Validate that the given value is a valid UUID v4 string.
+        :param value: The value to validate.
+        :raises: ValueObjectError if the value is not a valid UUID v4 string.
+        """
         super()._validate(value)
         try:
             uuid.UUID(str(value), version=4)