Update autoarray/geometry/geometry_util.py

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

Author: Jammy2211

autoarray/geometry/geometry_util.py

@@ -358,19 +358,42 @@ def scaled_coordinates_2d_from(
 
 
 def pixel_coordinates_wcs_2d_from(
-    scaled_coordinates_2d,
-    shape_native,
-    pixel_scales,
-    origins=(0.0, 0.0),
-):
+    scaled_coordinates_2d: Tuple[float, float],
+    shape_native: Tuple[int, int],
+    pixel_scales: ty.PixelScales,
+    origins: Tuple[float, float] = (0.0, 0.0),
+) -> Tuple[float, float]:
     """
     Return FITS / WCS pixel coordinates (1-based, pixel-centre convention) as floats.
 
     This function returns continuous pixel coordinates suitable for Astropy WCS
-    transforms (e.g. wcs_pix2world with origin=1). Pixel centres lie at integer
-    values; for an image of shape (ny, nx) the geometric centre is:
-        ((ny + 1)/2, (nx + 1)/2)
-    e.g. (100, 100) -> (50.5, 50.5).
+    transforms (e.g. ``wcs_pix2world`` with ``origin=1``). Pixel centres lie at
+    integer values; for an image of shape ``(ny, nx)`` the geometric centre is::
+
+        ((ny + 1) / 2, (nx + 1) / 2)
+
+    e.g. ``(100, 100) -> (50.5, 50.5)``.
+
+    Parameters
+    ----------
+    scaled_coordinates_2d
+        The 2D (y, x) coordinates in scaled units which are converted to WCS
+        pixel coordinates.
+    shape_native
+        The (y, x) shape of the 2D array on which the scaled coordinates are
+        defined, used to determine the geometric centre in WCS pixel units.
+    pixel_scales
+        The (y, x) conversion factors from scaled units to pixel units.
+    origins
+        The (y, x) origin in scaled units about which the coordinates are
+        defined. The scaled coordinates are shifted by this origin before being
+        converted to WCS pixel coordinates.
+
+    Returns
+    -------
+    pixel_coordinates_wcs_2d
+        A 2D (y, x) WCS pixel coordinate in the 1-based, pixel-centre
+        convention, returned as floats.
     """
     ny, nx = shape_native