new

 my $element = WSNotification::Elements::SubscriptionReference->new($data);

Constructor. The following data structure may be passed to new():

 { # WSNotification::Types::EndpointReferenceType
   Address =>  { value => $some_value },
   ReferenceParameters =>  { # WSNotification::Types::ReferenceParametersType
   },
   Metadata =>  { # WSNotification::Types::MetadataType
   },
 },