diff --git a/common/args.py b/common/args.py
index bd9c67c..7d2427f 100644
--- a/common/args.py
+++ b/common/args.py
@@ -1,20 +1,10 @@
 """Argparser for overriding config values"""
 
 import argparse
-from typing import Any
-
 from pydantic import BaseModel
 
 from common.config_models import TabbyConfigModel
-
-
-def is_list_type(type_hint):
-    if hasattr(type_hint, "__origin__") and type_hint.__origin__ is list:
-        return True
-    if hasattr(type_hint, "__args__"):
-        # Recursively check for lists inside type arguments
-        return any(is_list_type(arg) for arg in type_hint.__args__)
-    return False
+from common.utils import is_list_type
 
 
 def add_field_to_group(group, field_name, field_type, field) -> None:
@@ -26,6 +16,7 @@ def add_field_to_group(group, field_name, field_type, field) -> None:
         "help": field.description if field.description else "No description available",
     }
 
+    # If the inner type contains a list, specify argparse as such
     if is_list_type(field_type):
         kwargs["nargs"] = "+"
 
@@ -63,7 +54,7 @@ def init_argparser() -> argparse.ArgumentParser:
 
 def convert_args_to_dict(
     args: argparse.Namespace, parser: argparse.ArgumentParser
-) -> dict[str, dict[str, Any]]:
+) -> dict:
     """Broad conversion of surface level arg groups to dictionaries"""
 
     arg_groups = {}
diff --git a/common/config_models.py b/common/config_models.py
index 1b371d5..4c12445 100644
--- a/common/config_models.py
+++ b/common/config_models.py
@@ -6,6 +6,8 @@ CACHE_SIZES = Literal["FP16", "Q8", "Q6", "Q4"]
 
 
 class ConfigOverrideConfig(BaseModel):
+    """Model for overriding a provided config file."""
+
     # TODO: convert this to a pathlib.path?
     config: Optional[str] = Field(
         None, description=("Path to an overriding config.yml file")
@@ -13,6 +15,9 @@ class ConfigOverrideConfig(BaseModel):
 
 
 class UtilityActions(BaseModel):
+    """Model used for arg actions."""
+
+    # YAML export options
     export_config: Optional[str] = Field(
         None, description="generate a template config file"
     )
@@ -20,6 +25,7 @@ class UtilityActions(BaseModel):
         "config_sample.yml", description="path to export configuration file to"
     )
 
+    # OpenAPI JSON export options
     export_openapi: Optional[bool] = Field(
         False, description="export openapi schema files"
     )
@@ -29,6 +35,8 @@ class UtilityActions(BaseModel):
 
 
 class NetworkConfig(BaseModel):
+    """Model for network configuration."""
+
     host: Optional[str] = Field("127.0.0.1", description=("The IP to host on"))
     port: Optional[int] = Field(5000, description=("The port to host on"))
     disable_auth: Optional[bool] = Field(
@@ -47,6 +55,8 @@ class NetworkConfig(BaseModel):
 
 
 class LoggingConfig(BaseModel):
+    """Model for logging configuration."""
+
     log_prompt: Optional[bool] = Field(False, description=("Enable prompt logging"))
     log_generation_params: Optional[bool] = Field(
         False, description=("Enable generation parameter logging")
@@ -55,6 +65,8 @@ class LoggingConfig(BaseModel):
 
 
 class ModelConfig(BaseModel):
+    """Model for LLM configuration."""
+
     # TODO: convert this to a pathlib.path?
     model_dir: str = Field(
         "models",
@@ -201,6 +213,8 @@ class ModelConfig(BaseModel):
 
 
 class DraftModelConfig(BaseModel):
+    """Model for draft LLM model configuration."""
+
     # TODO: convert this to a pathlib.path?
     draft_model_dir: Optional[str] = Field(
         "models",
@@ -239,6 +253,8 @@ class DraftModelConfig(BaseModel):
 
 
 class LoraInstanceModel(BaseModel):
+    """Model representing an instance of a Lora."""
+
     name: str = Field(..., description=("Name of the LoRA model"))
     scaling: float = Field(
         1.0,
@@ -248,6 +264,8 @@ class LoraInstanceModel(BaseModel):
 
 
 class LoraConfig(BaseModel):
+    """Model for lora configuration."""
+
     # TODO: convert this to a pathlib.path?
     lora_dir: Optional[str] = Field(
         "loras", description=("Directory to look for LoRAs (default: 'loras')")
@@ -262,12 +280,16 @@ class LoraConfig(BaseModel):
 
 
 class SamplingConfig(BaseModel):
+    """Model for sampling (overrides) config."""
+
     override_preset: Optional[str] = Field(
         None, description=("Select a sampler override preset")
     )
 
 
 class DeveloperConfig(BaseModel):
+    """Model for developer settings configuration."""
+
     unsafe_launch: Optional[bool] = Field(
         False, description=("Skip Exllamav2 version check")
     )
@@ -290,6 +312,8 @@ class DeveloperConfig(BaseModel):
 
 
 class EmbeddingsConfig(BaseModel):
+    """Model for embeddings configuration."""
+
     # TODO: convert this to a pathlib.path?
     embedding_model_dir: Optional[str] = Field(
         "models",
@@ -310,6 +334,8 @@ class EmbeddingsConfig(BaseModel):
 
 
 class TabbyConfigModel(BaseModel):
+    """Base model for a TabbyConfig."""
+
     config: ConfigOverrideConfig = Field(
         default_factory=ConfigOverrideConfig.model_construct
     )
@@ -331,6 +357,8 @@ class TabbyConfigModel(BaseModel):
 
 
 def generate_config_file(filename="config_sample.yml", indentation=2):
+    """Creates a config.yml file from Pydantic models."""
+
     schema = TabbyConfigModel.model_json_schema()
 
     def dump_def(id: str, indent=2):
@@ -356,6 +384,3 @@ def generate_config_file(filename="config_sample.yml", indentation=2):
 
     with open(filename, "w") as f:
         f.write(yaml)
-
-
-# generate_config_file("test.yml")
diff --git a/common/utils.py b/common/utils.py
index d5723a0..d933fb6 100644
--- a/common/utils.py
+++ b/common/utils.py
@@ -1,5 +1,7 @@
 """Common utility functions"""
 
+from typing import get_args, get_origin
+
 
 def unwrap(wrapped, default=None):
     """Unwrap function for Optionals."""
@@ -43,3 +45,17 @@ def flat_map(input_list):
     """Flattens a list of lists into a single list."""
 
     return [item for sublist in input_list for item in sublist]
+
+
+def is_list_type(type_hint):
+    """Checks if a type contains a list."""
+
+    if get_origin(type_hint) is list:
+        return True
+
+    # Recursively check for lists inside type arguments
+    type_args = get_args(type_hint)
+    if type_args:
+        return any(is_list_type(arg) for arg in type_args)
+
+    return False