code: func (actor Actor) GetOrganizationSpaces(orgGUID string) ([]Space, Warnings, error) {
  	ccv2Spaces, warnings, err := actor.CloudControllerClient.GetSpaces(ccv3.Query{
  		Key:    ccv3.OrganizationGUIDFilter,
  		Values: []string{orgGUID},
  	})
  	if err != nil {
  		return []Space{}, Warnings(warnings), err
  	}
  
  	spaces := make([]Space, len(ccv2Spaces))
  	for i, ccv2Space := range ccv2Spaces {
  		spaces[i] = Space(ccv2Space)
  	}
  
  	return spaces, Warnings(warnings), nil
  }
docs: // GetOrganizationSpaces returns a list of spaces in the specified org