ReadingEDM.cs

IEdmModel model;
Func<Uri, XmlReader> getReferencedSchemaFunc = uri =>
{
  return XmlReader.Create(GetModelStream(uri));
};

ODataMessageReaderSettings readerSettings = new ODataMessageReaderSettings() { BaseUri = new Uri(ServiceBaseUri) };
using (var msgReader = new ODataMessageReader((IODataResponseMessage)message, readerSettings))
{
  model = msgReader.ReadMetadataDocument(getReferencedSchemaFunc);
}