+ @classmethod
+ def get_help(cls):
+ """ Returns the description of the type of Resource
+
+ """
+ return cls._help
+
+ @classmethod
+ def get_backend(cls):
+ """ Returns the identified of the backend (i.e. testbed, environment)
+ for the Resource
+
+ """
+ return cls._backend
+
+ @classmethod
+ def get_global(cls, name):
+ """ Returns the value of a global attribute
+ Global attribute meaning an attribute for
+ all the resources from a rtype
+
+ :param name: Name of the attribute
+ :type name: str
+ :rtype: str
+ """
+ global_attr = cls._attributes[name]
+ return global_attr.value
+
+ @classmethod
+ def set_global(cls, name, value):
+ """ Set value for a global attribute
+
+ :param name: Name of the attribute
+ :type name: str
+ :param name: Value of the attribute
+ :type name: str
+ """
+ global_attr = cls._attributes[name]
+ global_attr.value = value
+ return value
+