Function: transient-define-argument
transient-define-argument is a function alias for
transient-define-infix, defined in transient.el.
Signature
(transient-define-argument NAME ARGLIST [DOCSTRING] [KEYWORD VALUE]...)
Documentation
Define NAME as a transient infix command.
Only use this alias to define an infix command that actually
sets an infix argument. To define a infix command that, for
example, sets a variable, use transient-define-infix instead.