isone for BimoduleSectors

Author: borisdevos

src/bimodulesector.jl

@@ -182,6 +182,8 @@ function Base.one(a::BimoduleSector)
     return typeof(a)(a.i, a.i, _get_dual_cache(typeof(a))[1][a.i])
 end
 
+Base.isone(a::BimoduleSector) = leftone(a) == a == rightone(a)
+
 function Base.one(::Type{<:BimoduleSector})
     throw(ArgumentError("one of Type BimoduleSector doesn't exist"))
 end