code: func (o *Compute) SetLaunchConfiguration(v *LaunchSpecification) *Compute {
  	if o.LaunchSpecification = v; o.LaunchSpecification == nil {
  		o.nullFields = append(o.nullFields, "LaunchSpecification")
  	}
  	return o
  }
docs: // SetLaunchSpecification sets the launch configuration of the group.