External_ffi_typestype arg_type = External_arg_spec.attrtype arg_label = External_arg_spec.labeltype external_spec = | Js_var of {name : string;external_module_name : external_module_name option;scopes : string list;}| Js_module_as_var of external_module_name| Js_module_as_fn of {external_module_name : external_module_name;splice : bool;}| Js_module_as_class of external_module_name| Js_call of {name : string;external_module_name : external_module_name option;splice : bool;scopes : string list;}| Js_send of {name : string;splice : bool;pipe : pipe;js_send_scopes : string list;}| Js_new of {name : string;external_module_name : external_module_name option;splice : bool;scopes : string list;}| Js_set of {}| Js_get of {}| Js_get_index of {}| Js_set_index of {}type t = private | Ffi_bs of params * return_wrapper * external_spec| Ffi_obj_create of External_arg_spec.obj_params| Ffi_inline_const of Lam_constant.t| Ffi_normalval check_ffi : ?loc:Melange_compiler_libs.Location.t -> external_spec -> boolval to_string : t -> stringval from_string : string -> tNote
val ffi_bs : External_arg_spec.params -> return_wrapper -> external_spec -> tval ffi_bs_as_prims : 
  External_arg_spec.params ->
  return_wrapper ->
  external_spec ->
  string listval ffi_obj_create : External_arg_spec.obj_params -> tval ffi_obj_as_prims : External_arg_spec.obj_params -> string list