src/transformers/models/electra/modeling_flax_electra.py/FlaxElectraClassificationHead/__call__
class FlaxElectraClassificationHead:    def __call__(self, hidden_states, deterministic: bool = True):
        x = hidden_states[:, 0, :]  # take <s> token (equiv. to [CLS])
        x = self.dropout(x, deterministic=deterministic)
        x = self.dense(x)
        x = ACT2FN["gelu"](x)  # although BERT uses tanh here, it seems Electra authors used gelu
        x = self.dropout(x, deterministic=deterministic)
        x = self.out_proj(x)
        return x