You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: node.pb.gw.go
    path of file: ./repos/wormhole/node/pkg/proto/node/v1
    
    the code of the file until where you have to start completion: // Code generated by protoc-gen-grpc-gateway. DO NOT EDIT.
// source: node/v1/node.proto

/*
Package nodev1 is a reverse proxy.

It translates gRPC into RESTful JSON APIs.
*/
package nodev1

import (
	"context"
	"io"
	"net/http"

	"github.com/grpc-ecosystem/grpc-gateway/v2/runtime"
	"github.com/grpc-ecosystem/grpc-gateway/v2/utilitie
    
func local_request_NodePrivilegedService_GetAndObserveMissingVAAs_0(ctx context.Context, marshaler runtime.Marshaler, server NodePrivilegedServiceServer, req *http.Request, pathParams map[string]string) (proto.Message, runtime.ServerMetadata, error) {
	var protoReq GetAndObserveMissingVAAsRequest
	var metadata runtime.ServerMetadata

	newReader, berr := utilities.IOReaderFactory(req.Body)
	if berr != nil {
		return nil, metadata, status.Errorf(codes.InvalidArgument, "%v", berr)
	}
	if err := marshaler.NewDecoder(newReader()).Decode(&protoReq); err != nil && err != io.EOF {
		return nil, metadata, status.Errorf(codes.InvalidArgument, "%v", err)
	}

	msg, err := server.GetAndObserveMissingVAAs(ctx, &protoReq)
	return msg, metadata, err

}