EXISTS accepts a variable number of keys

[stleon]

From the docs:

Since Redis 3.0.3 the command accepts a variable number of keys

But in source code accepts only one key:

def exists(self, key):
    """Check if key exists."""
    fut = self._conn.execute(b'EXISTS', key)
    return wait_convert(fut, bool)

Thanks!

[popravich]

Updated