diff --git a/API/api_worker.py b/API/api_worker.py
index 1f4e559f..0a90ce21 100644
--- a/API/api_worker.py
+++ b/API/api_worker.py
@@ -75,7 +75,12 @@ def create_readme_content(default_readme, polygon_stats):
 
 
 def zip_binding(
-    working_dir, exportname_parts, geom_dump, polygon_stats, geojson_stats, default_readme
+    working_dir,
+    exportname_parts,
+    geom_dump,
+    polygon_stats,
+    geojson_stats,
+    default_readme,
 ):
     logging.debug("Zip Binding Started!")
     upload_file_path = os.path.join(
@@ -168,6 +173,7 @@ def on_failure(self, exc, task_id, args, kwargs, einfo):
         if os.path.exists(clean_dir):
             shutil.rmtree(clean_dir)
 
+
 @celery.task(
     bind=True,
     name="process_raw_data",
diff --git a/src/app.py b/src/app.py
index 102754a4..b675001a 100644
--- a/src/app.py
+++ b/src/app.py
@@ -641,7 +641,7 @@ def ogr_export(query, outputtype, working_dir, dump_temp_path, params):
         os.remove(query_path)
 
     @staticmethod
-    def query2geojson(con, extraction_query, dump_temp_file_path, plugin_fn = None):
+    def query2geojson(con, extraction_query, dump_temp_file_path, plugin_fn=None):
         """Function written from scratch without being dependent on any library, Provides better performance for geojson binding"""
         # creating geojson file
         pre_geojson = """{"type": "FeatureCollection","features": ["""
@@ -714,7 +714,7 @@ def get_grid_id(geom, cur):
             country_export,
         )
 
-    def extract_current_data(self, exportname, plugin_fn = None):
+    def extract_current_data(self, exportname, plugin_fn=None):
         """Responsible for Extracting rawdata current snapshot, Initially it creates a geojson file , Generates query , run it with 1000 chunk size and writes it directly to the geojson file and closes the file after dump
         Args:
             exportname: takes filename as argument to create geojson file passed from routers
@@ -780,7 +780,7 @@ def extract_current_data(self, exportname, plugin_fn = None):
                         country_export=country_export,
                     ),
                     dump_temp_file_path,
-                    plugin_fn
+                    plugin_fn,
                 )  # uses own conversion class
             if output_type == RawDataOutputType.SHAPEFILE.value:
                 (
@@ -2260,6 +2260,7 @@ def get_summary_stats(self, start_date, end_date, group_by):
         self.d_b.close_conn()
         return [dict(item) for item in result]
 
+
 class GeoJSONStats(Stats):
     """Used for collecting stats while processing GeoJSON files line by line"""
 
@@ -2305,6 +2306,10 @@ def check_filter(self, tags, tag):
             if tags.line.join_and and tag in tags.line.join_and:
                 return True
 
+    """
+    Process a GeoJSON line (for getting stats) and return that line
+    """
+
     def raw_data_line_stats(self, line: str):
         self.process_file_line(line)
         return line
diff --git a/src/validation/models.py b/src/validation/models.py
index 1b1b0e92..4b757447 100644
--- a/src/validation/models.py
+++ b/src/validation/models.py
@@ -303,22 +303,22 @@ class StatsRequestParams(BaseModel, GeometryValidatorMixin):
         max_length=3,
         example="NPL",
     )
-    geometry: Optional[
-        Union[Polygon, MultiPolygon, Feature, FeatureCollection]
-    ] = Field(
-        default=None,
-        example={
-            "type": "Polygon",
-            "coordinates": [
-                [
-                    [83.96919250488281, 28.194446860487773],
-                    [83.99751663208006, 28.194446860487773],
-                    [83.99751663208006, 28.214869548073377],
-                    [83.96919250488281, 28.214869548073377],
-                    [83.96919250488281, 28.194446860487773],
-                ]
-            ],
-        },
+    geometry: Optional[Union[Polygon, MultiPolygon, Feature, FeatureCollection]] = (
+        Field(
+            default=None,
+            example={
+                "type": "Polygon",
+                "coordinates": [
+                    [
+                        [83.96919250488281, 28.194446860487773],
+                        [83.99751663208006, 28.194446860487773],
+                        [83.99751663208006, 28.214869548073377],
+                        [83.96919250488281, 28.214869548073377],
+                        [83.96919250488281, 28.194446860487773],
+                    ]
+                ],
+            },
+        )
     )
 
     @validator("geometry", pre=True, always=True)
@@ -624,22 +624,22 @@ class DynamicCategoriesModel(CategoriesBase, GeometryValidatorMixin):
         max_length=3,
         example="USA",
     )
-    geometry: Optional[
-        Union[Polygon, MultiPolygon, Feature, FeatureCollection]
-    ] = Field(
-        default=None,
-        example={
-            "type": "Polygon",
-            "coordinates": [
-                [
-                    [83.96919250488281, 28.194446860487773],
-                    [83.99751663208006, 28.194446860487773],
-                    [83.99751663208006, 28.214869548073377],
-                    [83.96919250488281, 28.214869548073377],
-                    [83.96919250488281, 28.194446860487773],
-                ]
-            ],
-        },
+    geometry: Optional[Union[Polygon, MultiPolygon, Feature, FeatureCollection]] = (
+        Field(
+            default=None,
+            example={
+                "type": "Polygon",
+                "coordinates": [
+                    [
+                        [83.96919250488281, 28.194446860487773],
+                        [83.99751663208006, 28.194446860487773],
+                        [83.99751663208006, 28.214869548073377],
+                        [83.96919250488281, 28.214869548073377],
+                        [83.96919250488281, 28.194446860487773],
+                    ]
+                ],
+            },
+        )
     )
 
     @validator("geometry", pre=True, always=True)