Structuring Processing Engine documentation directory

content/influxdb3/core/process-data/processing-engine/_index.md

@@ -0,0 +1,19 @@
+---
+title: Processing engine and Python plugins
+description: |
+  Use the InfluxDB 3 Processing engine with Python to trigger and execute custom
+  code on different events in an {{< product-name >}} instance.
+menu:
+  influxdb3_core:
+    name: Processing engine and Python plugins
+weight: 4
+influxdb3/core/tags: [processing engine, python]
+related:
+- /influxdb3/core/reference/cli/influxdb3/test/wal_plugin/ 
+- /influxdb3/core/reference/cli/influxdb3/create/trigger/
+source: /shared/influxdb3-processing-data/_index.md
+---
+
+<!-- 
+//SOURCE - content/shared/processing-data/e_index.md
+-->

content/influxdb3/core/process-data/processing-engine/plugins/_index.md

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+---
+title: Processing engine and Python plugins
+description: |
+  Use the InfluxDB 3 Processing engine with Python to trigger and execute custom
+  code on different events in an {{< product-name >}} instance.
+menu:
+  influxdb3_core:
+    name: Processing engine and Python plugins
+weight: 4
+influxdb3/core/tags: [processing engine, python]
+related:
+- /influxdb3/core/reference/cli/influxdb3/test/wal_plugin/ 
+- /influxdb3/core/reference/cli/influxdb3/create/trigger/
+source: /shared/influxdb3-processing-data/extended-plugin-api.md
+---
+
+<!-- 
+//SOURCE - source: /shared/influxdb3-processing-data/extended-plugin-api.md
+-->
+

content/influxdb3/core/process-data/processing-engine/plugins/extend-plugins.md

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+---
+title: Extend plugins with API features and state management
+description: |
+  The Processing engine includes an API that allows your plugins to interact with your data, build and write line protocol, and maintain state between executions.
+menu:
+  influxdb3_core:
+    name: Extend plugins
+    parent: Processing engine and Python plugins
+weight: 4
+influxdb3/core/tags: [processing engine, plugins, API, python]
+source: /shared/processing-data/processing-data/extended-plugin-api.md
+---
+
+<!-- 
+// SOURCE content/shared/processing-data/extended-plugin-api.md
+-->