code: func (o *InitializeParams) SetDiskSizeGB(v *int) *InitializeParams {
  	if o.DiskSizeGB = v; o.DiskSizeGB == nil {
  		o.nullFields = append(o.nullFields, "DiskSizeGB")
  	}
  	return o
  }
docs: // SetDiskSizeGB sets the disk size in gigabytes, in multiples of 2