public boolean isSetIsOptional() {
    return org.apache.amoro.shade.thrift.org.apache.thrift.EncodingUtils.testBit(__isset_bitfield, __ISOPTIONAL_ISSET_ID);
  }
Returns true if field isOptional is set (has been assigned a value) and false otherwise
amoro-common/src/main/gen-java/org/apache/amoro/api/ColumnInfo.java