diff --git a/src/access.py b/src/access.py
index 9d77a38..0d890b0 100644
--- a/src/access.py
+++ b/src/access.py
@@ -7,6 +7,8 @@ from io import BytesIO
 
 
 class Access:
+    """Class accessing our platform"""
+
     PENDING = 1
     PROCESS = 2
     GENERATE = 3
@@ -21,21 +23,21 @@ class Access:
     refresh = None
     refresh_time = None
     headers = None
-
     refreshing = Event()
 
     def __init__(self, url):
         """
-
         :param url: str, url received from queue message, if field apiURL exists
                         else None
         """
+
         self.set_credentials(url)
         self.get_token()
         self.refreshing.set()
 
     def sleep(timeout: float, retry=3):
         def decorator(function):
+            """Decorator sleeping timeout sec and makes 3 retries"""
             def wrapper(*args, **kwargs):
                 retries = 0
                 while retries < retry:
@@ -66,6 +68,9 @@ class Access:
         self.headers = {
             'Authorization': f'Bearer {self.token}'
         }
+        # self.session = requests.Session()
+        # self.session.auth=
+        # self.session.headers.update({'Authorization': f'Bearer {self.token}'})
 
     def is_time_for_refreshing(self):
         return self.refresh_time < time.time()
@@ -76,7 +81,10 @@ class Access:
             'username': self.username,
             'password': self.password
         }
-        response = requests.post(f'{self.url}/token', json=json_form)
+        response = requests.post(
+            f'{self.url}/token', json=json_form,
+        #    auth=('kiryl.miatselitsa', 'iK4yXCvdyHFEEOvG2v3F')
+        )
 
         if response.status_code == 400:
             raise Exception('400 Bad request: invalid login and/or password.')
@@ -95,7 +103,10 @@ class Access:
             'grantType': 'refresh_token',
             'refreshToken': self.refresh
         }
-        response = requests.post(f'{self.url}/token', json=json_form)
+        response = requests.post(
+            f'{self.url}/token', json=json_form,
+            # auth=('kiryl.miatselitsa', 'iK4yXCvdyHFEEOvG2v3F')
+        )
 
         if response.status_code == 400:
             raise Exception(
@@ -113,12 +124,15 @@ class Access:
             raise Exception(f'{response.status_code}')
 
     def get_book(self, book_id):
+        """Function downloads the book from site"""
         if self.is_time_for_refreshing():
             self.refresh_token()
 
         self.refreshing.wait()
         response = requests.get(
-            f'{self.url}/doc-convert/{book_id}/file', headers=self.headers)
+            f'{self.url}/doc-convert/{book_id}/file', headers=self.headers,
+            # auth=('kiryl.miatselitsa', 'iK4yXCvdyHFEEOvG2v3F')
+        )
 
         if response.status_code == 404:
             raise FileNotFoundError('404 Not Found: file have not found.')
@@ -132,6 +146,7 @@ class Access:
 
     @sleep(3)
     def send_image(self, img_path, doc_id, img_content: bytes = None):
+        """Function sends images to site"""
         if self.is_time_for_refreshing():
             self.refresh_token()
         self.refreshing.wait()
@@ -141,7 +156,9 @@ class Access:
             'image': (os.path.basename(img_path), img_obj)
         }
         response = requests.post(
-            f'{self.url}/doc-convert/image', files=files, headers=self.headers)
+            f'{self.url}/doc-convert/image', files=files, headers=self.headers
+            # auth=('kiryl.miatselitsa', 'iK4yXCvdyHFEEOvG2v3F')
+        )
         img_obj.close()
 
         if response.status_code == 200:
@@ -153,6 +170,7 @@ class Access:
         return img_url
 
     def send_book(self, doc_id, content):
+        """Function sends the book to site"""
         if self.is_time_for_refreshing():
             self.refresh_token()
 
@@ -171,6 +189,7 @@ class Access:
                 f'{response.status_code} Bad request: {response.json()["message"]}.')
 
     def update_status(self, doc_id, status):
+        """Function updates status of the book on site"""
         if self.is_time_for_refreshing():
             self.refresh_token()