backticks, use Optional instead of | None

Author: rbavery

CONTRIBUTING.md

@@ -2,14 +2,14 @@
 
 ## Project setup
 
-1. If you don't have uv installed run:
+1. If you don't have `uv` installed run:
 
 ```bash
 make setup
 ```
 
-> This installs uv as a [standalone application][uv-install]. <br>
-> For more details, see also the [uv documentation][uv-docs]. <br>
+> This installs `uv` as a [standalone application][uv-install]. <br>
+> For more details, see also the [`uv` documentation][uv-docs]. <br>
 
 2. Initialize project dependencies with `uv` and install `pre-commit` hooks:
 

stac_model/input.py

@@ -74,7 +74,7 @@ class ValueScalingProcessingExpression(ProcessingExpression):
     ]
 ]
 
-ResizeType: TypeAlias = (
+ResizeType: TypeAlias = Optional[
     Literal[
         "crop",
         "pad",
@@ -87,8 +87,7 @@ class ValueScalingProcessingExpression(ProcessingExpression):
         "wrap-fill-outliers",
         "wrap-inverse-map",
     ]
-    | None
-)
+]
 
 
 class ModelBand(MLMBaseModel):
@@ -99,11 +98,11 @@ class ModelBand(MLMBaseModel):
         )
     )
     # similar to 'ProcessingExpression', but they can be omitted here
-    format: Annotated[str | None, OmitIfNone] = Field(
+    format: Annotated[Optional[str], OmitIfNone] = Field(
         default=None,
         description="",
     )
-    expression: Annotated[Any | None, OmitIfNone] = Field(
+    expression: Annotated[Optional[Any], OmitIfNone] = Field(
         default=None,
         description="",
     )