On Thu, 25 Oct 2018, oleg_komashko(a)ukr.net wrote:
[F]or packages I can not foresee what series names will be
in a file opened by other user
Fortunately, as a package writer that need not concern you. You will
"see" outer series only under names you have chosen for the
parameters of your functions. Within your function, series can be
confused with functions only if you have chosen names that collide
with built-in functions.
Allin