Add missing docstrings

Author: mwcraig

src/astro_image_display_api/image_viewer_logic.py

@@ -135,6 +135,8 @@ def get_stretch(
             )
         return self._images[image_label].stretch
 
+    get_stretch.__doc__ = ImageViewerInterface.get_stretch.__doc__
+
     def set_stretch(
         self,
         value: BaseStretch,
@@ -153,6 +155,8 @@ def set_stretch(
             )
         self._images[image_label].stretch = value
 
+    set_stretch.__doc__ = ImageViewerInterface.set_stretch.__doc__
+
     def get_cuts(
         self,
         image_label: str | None = None,
@@ -165,6 +169,8 @@ def get_cuts(
             )
         return self._images[image_label].cuts
 
+    get_cuts.__doc__ = ImageViewerInterface.get_cuts.__doc__
+
     def set_cuts(
         self,
         value: tuple[numbers.Real, numbers.Real] | BaseInterval,
@@ -187,6 +193,8 @@ def set_cuts(
             )
         self._images[image_label].cuts = self._cuts
 
+    set_cuts.__doc__ = ImageViewerInterface.set_cuts.__doc__
+
     def set_colormap(
         self,
         map_name: str,
@@ -365,6 +373,8 @@ def get_image(
             )
         return self._images[image_label].data
 
+    get_image.__doc__ = ImageViewerInterface.get_image.__doc__
+
     @property
     def image_labels(self) -> tuple[str, ...]:
         return tuple(k for k in self._images.keys() if k is not None)