import sys
import importlib

# Check if wav2vec2 module is already in sys.modules
if 'wav2vec2' not in sys.modules:
    wav2vec2 = importlib.import_module('wav2vec2')
else:
    wav2vec2 = sys.modules['wav2vec2']

# Import necessary classes
Wav2Vec2Model = wav2vec2.Wav2Vec2Model
Wav2Vec2Config = wav2vec2.Wav2Vec2Config