Representing a chess pawn in Betza notation about fairy-stockfish

[ianfab]

I do not see the need for a change, the current description is fine. Promotion options are not part are not part of Betza notation.

[jaabsh1a]

I do not see the need for a change, the current description is fine. Promotion options are not part are not part of Betza notation.

n( optionally {ef} | ceF )[:=][QRNB] or
n(epd | ceF)[:=][QRNB] -epd stands for "en passant du" - from the starting rank
are better options for standard chess pawn, but I am not sure.
I am trying to build a new chess variant using a standard chess pawn as a prototype.
Are these 2 options good for this?