code: func (r Virtual_Disk_Image) GetSoftwareReferences() (resp []datatypes.Virtual_Disk_Image_Software, err error) {
  	err = r.Session.DoRequest("SoftLayer_Virtual_Disk_Image", "getSoftwareReferences", nil, &r.Options, &resp)
  	return
  }
docs: // Retrieve References to the software that resides on a disk image.