package Ġat . h ann esm oser . gle am . schema . extensions . field Ċ Ċ import Ġat . h ann esm oser . gle am . schema . Extended Field Ċ import Ġorg . apache . beam . sdk . schemas . Schema Ċ Ċ private Ġconst Ġval ĠEXT ENSION _ ID Ġ= Ġ" version " Ċ Ċ fun ĠExtended Field . version ( version : ĠString ) Ġ{ ĊĠ Ġval Ġoptions Ġ= ĠSchema . Options . builder () ĊĠĠĠ Ġ. set Option ( EXTENSION _ ID , ĠSchema . FieldType . STRING , Ġversion ) ĊĠĠĠ Ġ. build () ĊĊĠ Ġfield Ġ= Ġfield . with Options ( options ) Ċ } Ċ