diff --git a/model-zoo/models/mednist_ddpm/bundle/configs/common.yaml b/model-zoo/models/mednist_ddpm/bundle/configs/common.yaml
index e48b917b..c6073eb5 100644
--- a/model-zoo/models/mednist_ddpm/bundle/configs/common.yaml
+++ b/model-zoo/models/mednist_ddpm/bundle/configs/common.yaml
@@ -1,6 +1,6 @@
 # This file defines common definitions used in training and inference, most importantly the network definition
 
-imports: 
+imports:
 - $import os
 - $import datetime
 - $import torch
@@ -27,8 +27,8 @@ network_def:
   attention_levels: [false, true, true]
   num_res_blocks: 1
   num_head_channels: 128
-  
-network: $@network_def.to(@device)  
+
+network: $@network_def.to(@device)
 
 bundle_root: .
 ckpt_path: $@bundle_root + '/models/model.pt'
@@ -54,8 +54,7 @@ base_transforms:
 scheduler:
   _target_: generative.networks.schedulers.DDPMScheduler
   num_train_timesteps: '@num_train_timesteps'
-  
+
 inferer:
   _target_: generative.inferers.DiffusionInferer
   scheduler: '@scheduler'
-  
\ No newline at end of file
diff --git a/model-zoo/models/mednist_ddpm/bundle/configs/infer.yaml b/model-zoo/models/mednist_ddpm/bundle/configs/infer.yaml
index f140c3b6..46297e18 100644
--- a/model-zoo/models/mednist_ddpm/bundle/configs/infer.yaml
+++ b/model-zoo/models/mednist_ddpm/bundle/configs/infer.yaml
@@ -35,4 +35,4 @@ testing:
 #alternative version which saves to a jpg file
 testing_jpg:
 - '@load_state'
-- '$@save_trans(@sample(@noise.to(@device))[0])'
\ No newline at end of file
+- '$@save_trans(@sample(@noise.to(@device))[0])'
diff --git a/model-zoo/models/mednist_ddpm/bundle/configs/logging.conf b/model-zoo/models/mednist_ddpm/bundle/configs/logging.conf
index db85a0b9..91c1a21c 100644
--- a/model-zoo/models/mednist_ddpm/bundle/configs/logging.conf
+++ b/model-zoo/models/mednist_ddpm/bundle/configs/logging.conf
@@ -18,4 +18,4 @@ formatter=fullFormatter
 args=(sys.stdout,)
 
 [formatter_fullFormatter]
-format=%(asctime)s - %(name)s - %(levelname)s - %(message)s
\ No newline at end of file
+format=%(asctime)s - %(name)s - %(levelname)s - %(message)s
diff --git a/model-zoo/models/mednist_ddpm/bundle/configs/metadata.json b/model-zoo/models/mednist_ddpm/bundle/configs/metadata.json
index aef66f9f..1e657634 100644
--- a/model-zoo/models/mednist_ddpm/bundle/configs/metadata.json
+++ b/model-zoo/models/mednist_ddpm/bundle/configs/metadata.json
@@ -7,7 +7,9 @@
     "monai_version": "1.0.0",
     "pytorch_version": "1.10.2",
     "numpy_version": "1.21.2",
-    "optional_packages_version": {"generative":"0.1.0"},
+    "optional_packages_version": {
+        "generative": "0.1.0"
+    },
     "task": "MedNIST Hand Generation",
     "description": "",
     "authors": "Walter Hugo Lopez Pinaya, Mark Graham, and Eric Kerfoot",
diff --git a/model-zoo/models/mednist_ddpm/bundle/configs/train.yaml b/model-zoo/models/mednist_ddpm/bundle/configs/train.yaml
index 459e23bd..919e3a21 100644
--- a/model-zoo/models/mednist_ddpm/bundle/configs/train.yaml
+++ b/model-zoo/models/mednist_ddpm/bundle/configs/train.yaml
@@ -4,7 +4,7 @@
 output_dir: $datetime.datetime.now().strftime('./results/output_%y%m%d_%H%M%S')
 dataset_dir: ./data
 
-train_data: 
+train_data:
   _target_ : MedNISTDataset
   root_dir: '@dataset_dir'
   section: training
@@ -12,7 +12,7 @@ train_data:
   progress: false
   seed: 0
 
-val_data: 
+val_data:
   _target_ : MedNISTDataset
   root_dir: '@dataset_dir'
   section: validation
@@ -37,7 +37,7 @@ save_interval: 5
 train_transforms:
 - _target_: RandAffined
   keys: '@image'
-  rotate_range: 
+  rotate_range:
   - ['$-np.pi / 36', '$np.pi / 36']
   - ['$-np.pi / 36', '$np.pi / 36']
   translate_range:
@@ -49,14 +49,14 @@ train_transforms:
   spatial_size: [64, 64]
   padding_mode: "zeros"
   prob: '@rand_prob'
-  
+
 train_ds:
   _target_: Dataset
   data: $@train_datalist
   transform:
     _target_: Compose
     transforms: '$@base_transforms + @train_transforms'
-    
+
 train_loader:
   _target_: ThreadDataLoader
   dataset: '@train_ds'
@@ -65,7 +65,7 @@ train_loader:
   num_workers: '@num_workers'
   use_thread_workers: '@use_thread_workers'
   persistent_workers: '$@num_workers > 0'
-  shuffle: true    
+  shuffle: true
 
 val_ds:
   _target_: Dataset
@@ -73,7 +73,7 @@ val_ds:
   transform:
     _target_: Compose
     transforms: '@base_transforms'
-    
+
 val_loader:
   _target_: DataLoader
   dataset: '@val_ds'
@@ -81,19 +81,19 @@ val_loader:
   num_workers: '@num_workers'
   persistent_workers: '$@num_workers > 0'
   shuffle: false
-    
+
 lossfn:
   _target_: torch.nn.MSELoss
-  
+
 optimizer:
   _target_: torch.optim.Adam
   params: $@network.parameters()
   lr: '@lr'
-  
+
 prepare_batch:
   _target_: generative.engines.DiffusionPrepareBatch
   num_train_timesteps: '@num_train_timesteps'
-  
+
 val_handlers:
 - _target_: StatsHandler
   name: train_log
@@ -114,7 +114,7 @@ evaluator:
       output_transform: $monai.handlers.from_engine([@pred, @label])
   metric_cmp_fn: '$scripts.inv_metric_cmp_fn'
   val_handlers: '$list(filter(bool, @val_handlers))'
-  
+
 handlers:
 - _target_: CheckpointLoader
   _disabled_: $not os.path.exists(@ckpt_path)
@@ -144,14 +144,14 @@ trainer:
   optimizer: '@optimizer'
   inferer: '@inferer'
   prepare_batch: '@prepare_batch'
-  key_train_metric: 
+  key_train_metric:
     train_acc:
       _target_: MeanSquaredError
       output_transform: $monai.handlers.from_engine([@pred, @label])
   metric_cmp_fn: '$scripts.inv_metric_cmp_fn'
   train_handlers: '$list(filter(bool, @handlers))'
   amp: '@use_amp'
-  
-training: 
+
+training:
 - '$monai.utils.set_determinism(0)'
 - '$@trainer.run()'
diff --git a/model-zoo/models/mednist_ddpm/bundle/configs/train_multigpu.yaml b/model-zoo/models/mednist_ddpm/bundle/configs/train_multigpu.yaml
index 2811612f..51f5acf4 100644
--- a/model-zoo/models/mednist_ddpm/bundle/configs/train_multigpu.yaml
+++ b/model-zoo/models/mednist_ddpm/bundle/configs/train_multigpu.yaml
@@ -21,10 +21,10 @@ vsampler:
   shuffle: false
 val_loader#sampler: '@vsampler'
 
-training: 
+training:
 - $import torch.distributed as dist
 - $dist.init_process_group(backend='nccl')
 - $torch.cuda.set_device(@device)
 - $monai.utils.set_determinism(seed=123),
 - $@trainer.run()
-- $dist.destroy_process_group()
\ No newline at end of file
+- $dist.destroy_process_group()
diff --git a/model-zoo/models/mednist_ddpm/bundle/docs/sub_train_multigpu.sh b/model-zoo/models/mednist_ddpm/bundle/docs/sub_train_multigpu.sh
index 7c424af0..4d5f6af0 100644
--- a/model-zoo/models/mednist_ddpm/bundle/docs/sub_train_multigpu.sh
+++ b/model-zoo/models/mednist_ddpm/bundle/docs/sub_train_multigpu.sh
@@ -33,4 +33,4 @@ torchrun --standalone --nnodes=1 --nproc_per_node=2 -m monai.bundle run training
     --config_file "$CONFIG" \
     --logging_file "$BUNDLE/configs/logging.conf" \
     --bundle_root "$BUNDLE" \
-    --dataset_dir "$DATASET"
\ No newline at end of file
+    --dataset_dir "$DATASET"