chunk_content: network that is used to generate the virtual token embeddings for p-tuning.
  
  Example:
  
  
  	Copied
  >>> from peft import PromptEncoder, PromptEncoderConfig
  
  >>> config = PromptEncoderConfig(
  ...     peft_type="P_TUNING",
  ...     task_type="SEQ_2_SEQ_LM",
  ...     num_virtual_tokens=20,
  ...     token_dim=768,
  ...     num_transformer_submodules=1,
  ...     num_attention_heads=12,
  ...     num_layers=12,
  ...     encoder_reparameterization_type="MLP",
  ...