GoogleApi.File.V1.Connection.options

You're seeing just the function options, go back to GoogleApi.File.V1.Connection module for more information.
Link to this function

options(client, url, opts)

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Specs

Perform a OPTIONS request.

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

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