Binary package “libppx-derivers-ocaml-dev” in ubuntu impish

interoperability of ppx-deriving and ppx-type-conv

 This package is useful when programming with ppx syntax extensions in
 the OCaml programming language. Its purpose is to allow the ppx_deriving
 and ppx_type_conv syntax extensions to interoperate gracefully when linked
 as part of the same ocaml-migrate-parsetree driver.