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Clicking on the "Create new Cloud IoT Core Setting..." link will bring up the following form for adding a new Cloud IoT Core endpoint.
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Sets
The Sets tab contains a list of Google Cloud Sets. Each set represents a grouping of Cloud IoT Core endpoints. When a set is referenced by a Tag Agent the Agent will push Tag data to all Cloud IoT Core endpoints contained within that Set. The Sets are disjoint, meaning that a single Cloud IoT Core endpoint cannot be in more than one set. Out of the box the Google Cloud Injector module will have one "Default" set defined.
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