update method to unpack source file path from tuple (#339)

Author: saimonation

cterasdk/cio/core/commands.py

@@ -1184,7 +1184,7 @@ def __init__(self, function, receiver, block, path, new_name, resolver, cursor=N
                          resolver=resolver, cursor=cursor)
 
     def _before_command(self):
-        raise_or_suppress_access_error(self._receiver, self.paths[0])
+        raise_or_suppress_access_error(self._receiver, self.paths[0][0])
         return super()._before_command()
 
     def _try_with_resolver(self, cursor):