code: public void setGroupList(java.util.Collection<String> groupList) {
          if (groupList == null) {
              this.groupList = null;
              return;
          }
  
          this.groupList = new com.amazonaws.internal.SdkInternalList<String>(groupList);
      }
docs: <p>
  A list of IAM groups that the user is in.
  </p>
  
  @param groupList
  A list of IAM groups that the user is in.