src/transformers/models/sew_d/modeling_sew_d.py/ContextPooler/__init__
class ContextPooler:    def __init__(self, config):
        super().__init__()
        self.dense = nn.Linear(config.pooler_hidden_size, config.pooler_hidden_size)
        self.dropout = StableDropout(config.pooler_dropout)
        self.config = config