Added an add at position subroutiune to linked list

data_structures/linked_list/__init__.py

@@ -25,6 +25,41 @@ def add(self, item: Any) -> None:
         self.head = Node(item, self.head)
         self.size += 1
 
+    def add_at_position(self, item: Any, position: int) -> bool:
+        """
+        Adds a new node with the given item at the specified position in the linked list
+
+        Args:
+            item (Any): The item to be added to the linked list.
+            position (int): The position at which the item should be inserted.
+
+        Returns:
+            bool: True if the insertion was successful, False otherwise.
+
+        >>> linked_list = LinkedList()
+        >>> linked_list.add(1)
+        >>> linked_list.add(2)
+        >>> linked_list.add(3)
+        >>> linked_list.add_at_position(10, 1)
+        True
+
+        """
+        if position < 0:
+            return False
+
+        current = self.head
+        counter = 0
+        while current and counter < position:
+            current = current.next
+            counter += 1
+
+        if current:  # Check if current is not None
+            new_node = Node(item, current.next)
+            current.next = new_node
+            return True
+        else:
+            return False
+
     def remove(self) -> Any:
         # Switched 'self.is_empty()' to 'self.head is None'
         # because mypy was considering the possibility that 'self.head'