docs: public RunInstancesRequest withLicenseSpecifications(LicenseConfigurationRequest... licenseSpecifications) {
          if (this.licenseSpecifications == null) {
              setLicenseSpecifications(new com.amazonaws.internal.SdkInternalList<LicenseConfigurationRequest>(licenseSpecifications.length));
          }
          for (LicenseConfigurationRequest ele : licenseSpecifications) {
              this.licenseSpecifications.add(ele);
          }
          return this;
      }