parameters: (obj)
docstring: Returns uid of a cntk node if one exists
docstring_summary: Returns uid of a cntk node if one exists
docstring_tokens: Returns uid of a cntk node if one exists
function: def get_uid(obj):
          """
          Returns uid of a cntk node if one exists
          """
          if hasattr(obj, "uid"):
              return obj.uid
          else:
              return ""
function_tokens: def get_uid ( obj ) : if hasattr ( obj , "uid" ) : return obj . uid else : return ""