docs: public Ec2InstanceAttributes withAdditionalMasterSecurityGroups(String... additionalMasterSecurityGroups) {
          if (this.additionalMasterSecurityGroups == null) {
              setAdditionalMasterSecurityGroups(new com.amazonaws.internal.SdkInternalList<String>(additionalMasterSecurityGroups.length));
          }
          for (String ele : additionalMasterSecurityGroups) {
              this.additionalMasterSecurityGroups.add(ele);
          }
          return this;
      }