Value bindings
val mk : ?loc:loc ‑> ?attrs:attrs ‑> ?docs:Ppxlib_ast.Docstrings.docs ‑> ?text:Ppxlib_ast.Docstrings.text ‑> Ppxlib_ast__.Import.Parsetree.pattern ‑> Ppxlib_ast__.Import.Parsetree.expression ‑> Ppxlib_ast__.Import.Parsetree.value_binding