Add MichelineMichelsonV1Expression.t type

src/Beacon.res

@@ -44,6 +44,10 @@ type transactionHash = string
 
 type signingType = [#raw | #operation | #micheline]
 
+module MichelineMichelsonV1Expression = {
+  type t
+}
+
 module Message = {
   module Request = {
     module PartialOperation = {
@@ -60,10 +64,9 @@ module Message = {
       ]
       type basePartialOperation = {kind: partialOperationType}
 
-      type rawMethodArg
       type transactionParams = {
         entrypoint: string,
-        value: rawMethodArg,
+        value: MichelineMichelsonV1Expression.t,
         // fee: option<int>,
         // gasLimit: option<int>,
         // storageLimit: option<int>,