code: protected Field convertFieldSchema(Schema inputSchema, Field field, WorkUnitState workUnit)
        throws SchemaConversionException {
      if (field.name().equals(payloadField)) {
        // Create a payload field with latest schema
        return createLatestPayloadField(field);
      }
      // Make a copy of the field to the output schema
      return new Field(field.name(), field.schema(), field.doc(), field.defaultValue(), field.order());
    }
docs: Convert to the output schema of a field