pnf_substitution_mappings = tosca.tpl['topology_template'].get('substitution_mappings', None)
if pnf_substitution_mappings:
self.pnf['type'] = pnf_substitution_mappings['node_type']
pnf_substitution_mappings = tosca.tpl['topology_template'].get('substitution_mappings', None)
if pnf_substitution_mappings:
self.pnf['type'] = pnf_substitution_mappings['node_type']