implemented changes however function will not run

example/position.py

@@ -0,0 +1,12 @@
+import pick
+
+title = "Please choose your favorite programming language: "
+options = ["Java", "JavaScript", "Python", "PHP", "C++", "Erlang", "Haskell"]
+option, index = pick.pick(
+    options,
+    title,
+    indicator="=>",
+    default_index=2,
+    position=pick.Position(1,4)
+)
+print(f"You choosed {option} at index {index}")

src/pick/__init__.py

@@ -1,4 +1,5 @@
 import curses
+from collections import namedtuple
 from dataclasses import dataclass, field
 from typing import Any, List, Optional, Sequence, Tuple, TypeVar, Union, Generic
 
@@ -22,6 +23,8 @@ class Option:
 OPTION_T = TypeVar("OPTION_T", str, Option)
 PICK_RETURN_T = Tuple[OPTION_T, int]
 
+Position = namedtuple('Position', ['x', 'y'])
+
 
 @dataclass
 class Picker(Generic[OPTION_T]):
@@ -34,7 +37,7 @@ class Picker(Generic[OPTION_T]):
     selected_indexes: List[int] = field(init=False, default_factory=list)
     index: int = field(init=False, default=0)
     screen: Optional["curses._CursesWindow"] = None
-    position: dict = field(default_factory={"y0": 1, "x0": 1})
+    position: Position = field(default_factory=Position(1, 1))
 
     def __post_init__(self) -> None:
         if len(self.options) == 0:
@@ -114,7 +117,7 @@ def get_lines(self) -> Tuple[List, int]:
 
     def draw(self, screen: "curses._CursesWindow", position: dict) -> None:
         """draw the curses ui on the screen, handle scroll if needed"""
-        x, y = position["x0"], position["y0"]  # start point
+        x, y = position[0], position[1]  # start point
 
         max_y, max_x = screen.getmaxyx()
         max_rows = max_y - y  # the max rows we can draw
@@ -188,7 +191,7 @@ def pick(
     multiselect: bool = False,
     min_selection_count: int = 0,
     screen: Optional["curses._CursesWindow"] = None,
-    position: dict = {"y0": 1, "x0": 1}
+    position: Position = Position(1, 1)
 ):
     picker: Picker = Picker(
         options,