GoogleApi.Dataproc.V1.Connection.post-exclamation-mark

You're seeing just the function post-exclamation-mark, go back to GoogleApi.Dataproc.V1.Connection module for more information.
Link to this function

post!(client, url, body, opts)

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Specs

Perform a POST request.

See request!/1 or request!/2 for options definition.

post!("/users", %{name: "Jon"})
post!("/users", %{name: "Jon"}, query: [scope: "admin"])
post!(client, "/users", %{name: "Jon"})
post!(client, "/users", %{name: "Jon"}, query: [scope: "admin"])