Store.PathPath provides base functions for the stores's paths.
type t = pathThe type for path values.
type step = stepType type for path's steps.
val empty : tThe empty path.
val is_empty : t -> boolCheck if the path is empty.
Deconstruct the first element of the path. Return None if the path is empty.
Deconstruct the last element of the path. Return None if the path is empty.