src/transformers/models/mctct/modeling_mctct.py/MCTCTLayer/__init__
class MCTCTLayer:    def __init__(self, config: MCTCTConfig):
        super().__init__()

        self.seq_len_dim = 1
        self.chunk_size_feed_forward = config.chunk_size_feed_forward

        self.intermediate = MCTCTIntermediate(config)
        self.attention = MCTCTAttention(config)
        self.is_decoder = config.is_decoder
        self.output = MCTCTOutput(config)