diff --git a/infrastructure/aws/lambda/handler.py b/infrastructure/aws/lambda/handler.py
index 39344d4..a3ad561 100644
--- a/infrastructure/aws/lambda/handler.py
+++ b/infrastructure/aws/lambda/handler.py
@@ -4,10 +4,6 @@
 
 from mangum import Mangum
 
-import os
-directory = '/mnt/efs/libraries'
-contents = os.listdir(directory)
-print(contents)
 from titiler.xarray.main import app
 
 logging.getLogger("mangum.lifespan").setLevel(logging.ERROR)
diff --git a/titiler/xarray/factory.py b/titiler/xarray/factory.py
index d82800e..92f75dd 100644
--- a/titiler/xarray/factory.py
+++ b/titiler/xarray/factory.py
@@ -255,7 +255,6 @@ def tiles_endpoint(  # type: ignore
                     x, y, z, tilesize=scale * 256, nodata=src_dst.input.rio.nodata
                 )
 
-
             if post_process:
                 image = post_process(image)
 
diff --git a/titiler/xarray/reader.py b/titiler/xarray/reader.py
index a79b23e..3a01bfb 100644
--- a/titiler/xarray/reader.py
+++ b/titiler/xarray/reader.py
@@ -75,7 +75,7 @@ def get_filesystem(
             else s3fs.S3FileSystem()
         )
         return (
-            s3_filesystem.open(src_path, mode='rb')
+            s3_filesystem.open(src_path, mode="rb")
             if xr_engine == "h5netcdf"
             else s3fs.S3Map(root=src_path, s3=s3_filesystem)
         )
@@ -132,7 +132,7 @@ def xarray_open_dataset(
         "decode_coords": "all",
         "decode_times": decode_times,
         "engine": xr_engine,
-        "cache": False
+        "cache": False,
     }
 
     # Argument if we're opening a datatree
@@ -253,7 +253,8 @@ class ZarrReader(XarrayReader):
     def __attrs_post_init__(self):
         """Set bounds and CRS."""
         self.ds = self._ctx_stack.enter_context(
-            xarray_open_dataset(self.src_path,
+            xarray_open_dataset(
+                self.src_path,
                 group=self.group,
                 reference=self.reference,
                 consolidated=self.consolidated,