model:
  target: taming.models.vqgan.VQModel
  params:
    image_key: threshold
    ckpt_path: 
    embed_dim: 256
    n_embed: 512
    ddconfig:
      double_z: false
      z_channels: 256
      resolution: 256
      in_channels: 1
      out_ch: 1
      ch: 128
      ch_mult:
      - 1
      - 1
      - 2
      - 2
      - 4
      num_res_blocks: 2
      attn_resolutions:
      - 16
      dropout: 0.0