Certainly! Here's a shorter comment for a `TransformerEncoder` block in Python:

```python
class TransformerEncoder:
    """
    Applies self-attention and a feedforward neural network to a sequence of inputs to produce an output sequence of 
    the same length. Used in the encoding phase of the Transformer model for natural language processing.
    """
```
spam fails_task lang_mismatch pii not_appropriate hate_speech sexual_content quality toxicity humor helpfulness creativity violence