MEDYAN.pick_rand_fila_tip_site
Tuple{MEDYAN.Context, Any, Any, Any}
pick_rand_fila_tip_site(c::Context, chem_voxel, fila_typeid, fesid)::Union{FilaTipIdx, Nothing}
Return a FilaTipIdx of a random filaendsite, or return nothing if rejected weighted by counts, using the default RNG.
FilaTipIdx