instance := ServiceInstance{ Name: "example-instance", Plan: "basic", ... } createdInstance, err := instance.Create() if err != nil { // handle error }This will create a new `ServiceInstance` with the specified name and plan. Other available functions for `ServiceInstance` include `Update`, `Describe`, and `Delete`, which allow for managing and manipulating service instances. Overall, the `github.com.globocom.tsuru.service` package appears to be a library intended for building and managing services in a distributed system. Specifically, the `ServiceInstance` struct and functions seem to relate to creating and managing instances of those services.