Contains information of a event hook
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- MutationMutations are used to modify data. Each mutation takes an input that contains the data necessary to create or update the data in question.
- QueryQueries are used to retrieve data. If you're new to our API, try the `me` query to explore the information you have access to. Hit `ctrl-space` at any time to activate field completion hints, and mouse over a field or parameter to see its documentation.