@property<EOL><INDENT>def number_of_values(self):<DEDENT>
if not self._registry_key and self._registry:<EOL><INDENT>self._GetKeyFromRegistry()<EOL><DEDENT>if self._registry_key:<EOL><INDENT>return self._registry_key.number_of_values<EOL><DEDENT>return <NUM_LIT:0><EOL>
int: number of values within the key.