What is the meaning of ISMODIFY="NO" ISFIXED="NO" ISINITIALIZE="NO" ISOPTION="NO" ISINTERNAL="NO" in Tally XML Request

What the meaning of

ISMODIFY="NO" ISFIXED="NO" ISINITIALIZE="NO" ISOPTION="NO" ISINTERNAL="NO"

in tally xml request body. Thanks

I know some of them.

TDL supports Object oriented programming and here are the symbols and modifiers thar are related to this question.

• In TDL we can extend an existing definition using '#'

  for similar functionality in XML, we use ISMODIFY="YES"

• In TDL if we can create optional definitions using '!'

  for similar functionality in XML, we use ISOPTION="YES"

• In TDL if we can re-initialize definitions using '*'

  for similar functionality in XML, we use ISINITIALIZE="YES"

• I am not confirm about IsInternal , but I guess we use ISINTERNAL="YES", if are dealing with Internal definitions like internal objects