human
Solve the following python programming problem given the following code:
@ classmethod 
def isatty_from_env(cls, env) : 
    'Determine whether remote file descriptors are tty capable using std nailgunned env variables.

    :param dict env: A dictionary representing the environment.
    :returns: A tuple of boolean values indicating istty or not for (stdin, stdout, stderr).
    ' 
    def str_int_bool(i) : 
        return (i.isdigit () and bool (int (i))) 
return tuple ((str_int_bool (env.get (cls.TTY_ENV_TMPL.format (cls), '0')) for fd_id in range (3))) 

    
    

    Fix the buggy line: return tuple ((str_int_bool (env.get (cls.TTY_ENV_TMPL.format (cls), '0')) for fd_id in range (3)))
assistant
#Here is Python program to determine whether remote file descriptors are tty capable using std nailgunned env variables.

return tuple ((str_int_bool (env.get (cls.TTY_ENV_TMPL.format (fd_id), '0')) for fd_id in range (3)))