IntrusiveList.mapped_cons: def of bend-collections@1.0.0.0 Import: import bend-collections@1.0.0.0/src/containers/internal/intrusive_list.bend as IntrusiveList Lines 515-518 of bend-collections@1.0.0.0/src/containers/internal/intrusive_list.bend: https://jend.leeeet.dev/read.txt?path=bend-collections@1.0.0.0/src/containers/internal/intrusive_list.bend&start_line=515&end_line=518 import Base def mapped_cons(~T: Type, m: Maybe<&1, T>, xs: List<&1, T>) -> List<&1, T>: match m: case None{}: xs case Some{x}: Con{x, xs} Uses (2): https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=List https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Maybe