docs: public void setDBSecurityGroups(java.util.Collection<DBSecurityGroupMembership> dBSecurityGroups) {
          if (dBSecurityGroups == null) {
              this.dBSecurityGroups = null;
              return;
          }
  
          this.dBSecurityGroups = new java.util.ArrayList<DBSecurityGroupMembership>(dBSecurityGroups);
      }