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+#+title: Input/Output Stage Dependencies
+
+Overview of what fields are required for each consecutive step to run, and
+
+- Registration
+- Tiler
+  - Requires:
+    - None
+  # - Optionally:
+  - Produces:
+    - /trap_info
+- Tiler
+  - Requires:
+    - None
+  - Produces:
+    - /trap_info