public SubClass withSystemConfigs(Map<String, String> systemConfigs) {
    this.systemConfigs.putAll(systemConfigs);
    return (SubClass) this;
  }
Additional system-specific properties for this system.
<p>
These properties are added under the {@code systems.system-name.*} scope.

@param systemConfigs system-specific properties for this system
@return this system descriptor
samza-api/src/main/java/org/apache/samza/system/descriptors/SystemDescriptor.java