fix: add to_dict() for CheckpointUpdatedExecutionState and fix deserialization for CheckpointDurableExecutionRequest

Author: bchampp

src/aws_durable_execution_sdk_python_testing/model.py

@@ -1945,6 +1945,15 @@ def from_dict(cls, data: dict) -> CheckpointUpdatedExecutionState:
             next_marker=data.get("NextMarker"),
         )
 
+    def to_dict(self) -> dict[str, Any]:
+        """Convert to dictionary representation."""
+        result: dict[str, Any] = {
+            "Operations": [op.to_dict() for op in self.operations],
+        }
+        if self.next_marker is not None:
+            result["NextMarker"] = self.next_marker
+        return result
+
     def to_dict(self) -> dict[str, Any]:
         result: dict[str, Any] = {
             "Operations": [op.to_dict() for op in self.operations]
@@ -1985,20 +1994,24 @@ def from_dict(
                     error=ErrorObject.from_dict(update_data["Error"])
                     if update_data.get("Error")
                     else None,
-                    context_options=ContextOptions(**update_data["ContextOptions"])
+                    context_options=ContextOptions.from_dict(
+                        update_data["ContextOptions"]
+                    )
                     if update_data.get("ContextOptions")
                     else None,
-                    step_options=StepOptions(**update_data["StepOptions"])
+                    step_options=StepOptions.from_dict(update_data["StepOptions"])
                     if update_data.get("StepOptions")
                     else None,
-                    wait_options=WaitOptions(**update_data["WaitOptions"])
+                    wait_options=WaitOptions.from_dict(update_data["WaitOptions"])
                     if update_data.get("WaitOptions")
                     else None,
-                    callback_options=CallbackOptions(**update_data["CallbackOptions"])
+                    callback_options=CallbackOptions.from_dict(
+                        update_data["CallbackOptions"]
+                    )
                     if update_data.get("CallbackOptions")
                     else None,
-                    chained_invoke_options=ChainedInvokeOptions(
-                        **update_data["ChainedInvokeOptions"]
+                    chained_invoke_options=ChainedInvokeOptions.from_dict(
+                        update_data["ChainedInvokeOptions"]
                     )
                     if update_data.get("ChainedInvokeOptions")
                     else None,