code: public void setGroups(java.util.Collection<ReservationCoverageGroup> groups) {
          if (groups == null) {
              this.groups = null;
              return;
          }
  
          this.groups = new java.util.ArrayList<ReservationCoverageGroup>(groups);
      }
docs: <p>
  The groups of instances that the reservation covered.
  </p>
  
  @param groups
  The groups of instances that the reservation covered.