diff --git a/eland/ml/pytorch/_pytorch_model.py b/eland/ml/pytorch/_pytorch_model.py
index 66948b4f..0797e730 100644
--- a/eland/ml/pytorch/_pytorch_model.py
+++ b/eland/ml/pytorch/_pytorch_model.py
@@ -21,7 +21,7 @@
 import os
 from typing import TYPE_CHECKING, Any, Dict, Iterable, List, Set, Tuple, Union
 
-from tqdm.auto import tqdm
+from tqdm.auto import tqdm  # type: ignore
 
 from eland.common import ensure_es_client
 
@@ -101,7 +101,7 @@ def import_model(
 
     def infer(
         self, body: Dict[str, Any], timeout: str = DEFAULT_TIMEOUT
-    ) -> Dict[str, Any]:
+    ) -> Union[bool, Any]:
         return self._client.transport.perform_request(
             "POST",
             f"/_ml/trained_models/{self.model_id}/deployment/_infer",
@@ -124,7 +124,7 @@ def stop(self) -> None:
         )
 
     def delete(self) -> None:
-        self._client.ml.delete_trained_model(self.model_id, ignore=(404,))
+        self._client.ml.delete_trained_model(model_id=self.model_id, ignore=(404,))
 
     @classmethod
     def list(
diff --git a/eland/ml/pytorch/transformers.py b/eland/ml/pytorch/transformers.py
index dc5f37c3..41069675 100644
--- a/eland/ml/pytorch/transformers.py
+++ b/eland/ml/pytorch/transformers.py
@@ -23,11 +23,11 @@
 import json
 import os.path
 from abc import ABC, abstractmethod
-from typing import Any, List, Optional, Tuple, Union
+from typing import Any, Dict, List, Optional, Tuple, Union
 
-import torch
-import transformers
-from sentence_transformers import SentenceTransformer
+import torch  # type: ignore
+import transformers  # type: ignore
+from sentence_transformers import SentenceTransformer  # type: ignore
 from torch import Tensor, nn
 from transformers import (
     AutoConfig,
@@ -66,7 +66,7 @@
 ]
 
 
-class _DistilBertWrapper(nn.Module):
+class _DistilBertWrapper(nn.Module):  # type: ignore
     """
     A simple wrapper around DistilBERT model which makes the model inputs
     conform to Elasticsearch's native inference processor interface.
@@ -96,7 +96,7 @@ def forward(
         return self._model(input_ids=input_ids, attention_mask=attention_mask)
 
 
-class _SentenceTransformerWrapper(nn.Module):
+class _SentenceTransformerWrapper(nn.Module):  # type: ignore
     """
     A wrapper around sentence-transformer models to provide pooling,
     normalization and other graph layers that are not defined in the base
@@ -122,7 +122,7 @@ def from_pretrained(
         else:
             return None
 
-    def _remove_pooling_layer(self):
+    def _remove_pooling_layer(self) -> None:
         """
         Removes any last pooling layer which is not used to create embeddings.
         Leaving this layer in will cause it to return a NoneType which in turn
@@ -135,7 +135,7 @@ def _remove_pooling_layer(self):
         if hasattr(self._hf_model, "pooler"):
             self._hf_model.pooler = None
 
-    def _replace_transformer_layer(self):
+    def _replace_transformer_layer(self) -> None:
         """
         Replaces the HuggingFace Transformer layer in the SentenceTransformer
         modules so we can set it with one that has pooling layer removed and
@@ -167,7 +167,7 @@ def forward(
         return self._st_model(inputs)[self._output_key]
 
 
-class _DPREncoderWrapper(nn.Module):
+class _DPREncoderWrapper(nn.Module):  # type: ignore
     """
     AutoModel loading does not work for DPRContextEncoders, this only exists as
     a workaround. This may never be fixed so this is likely permanent.
@@ -240,10 +240,7 @@ def __init__(
         self._tokenizer = tokenizer
         self._model = model
 
-    def classification_labels(self) -> Optional[List[str]]:
-        return None
-
-    def quantize(self):
+    def quantize(self) -> None:
         torch.quantization.quantize_dynamic(
             self._model, {torch.nn.Linear}, dtype=torch.qint8
         )
@@ -275,11 +272,14 @@ def trace(self) -> TracedModelTypes:
     def _prepare_inputs(self) -> transformers.BatchEncoding:
         ...
 
+    def classification_labels(self) -> Optional[List[str]]:
+        return None
+
 
 class _TraceableClassificationModel(_TraceableModel, ABC):
     def classification_labels(self) -> Optional[List[str]]:
         id_label_items = self._model.config.id2label.items()
-        labels = [v for _, v in sorted(id_label_items, key=lambda kv: kv[0])]
+        labels = [v for _, v in sorted(id_label_items, key=lambda kv: kv[0])]  # type: ignore
 
         # Make classes like I-PER into I_PER which fits Java enumerations
         return [label.replace("-", "_") for label in labels]
@@ -361,15 +361,15 @@ def __init__(self, model_id: str, task_type: str, quantize: bool = False):
         self._vocab = self._load_vocab()
         self._config = self._create_config()
 
-    def _load_vocab(self):
+    def _load_vocab(self) -> Dict[str, List[str]]:
         vocab_items = self._tokenizer.get_vocab().items()
-        vocabulary = [k for k, _ in sorted(vocab_items, key=lambda kv: kv[1])]
+        vocabulary = [k for k, _ in sorted(vocab_items, key=lambda kv: kv[1])]  # type: ignore
         return {
             "vocabulary": vocabulary,
         }
 
-    def _create_config(self):
-        inference_config = {
+    def _create_config(self) -> Dict[str, Any]:
+        inference_config: Dict[str, Dict[str, Any]] = {
             self._task_type: {
                 "tokenization": {
                     "bert": {
@@ -448,7 +448,7 @@ def _create_traceable_model(self) -> _TraceableModel:
                 f"Unknown task type {self._task_type}, must be one of: {SUPPORTED_TASK_TYPES_NAMES}"
             )
 
-    def elasticsearch_model_id(self):
+    def elasticsearch_model_id(self) -> str:
         # Elasticsearch model IDs need to be a specific format: no special chars, all lowercase, max 64 chars
         return self._model_id.replace("/", "__").lower()[:64]
 
diff --git a/noxfile.py b/noxfile.py
index e9043143..0a4f45cc 100644
--- a/noxfile.py
+++ b/noxfile.py
@@ -44,6 +44,9 @@
     "eland/ml/_optional.py",
     "eland/ml/_model_serializer.py",
     "eland/ml/ml_model.py",
+    "eland/ml/pytorch/__init__.py",
+    "eland/ml/pytorch/_pytorch_model.py",
+    "eland/ml/pytorch/transformers.py",
     "eland/ml/transformers/__init__.py",
     "eland/ml/transformers/base.py",
     "eland/ml/transformers/lightgbm.py",