Add new method check_username

pyrogram/methods/users/__init__.py

@@ -17,6 +17,7 @@
 #  along with Pyrogram.  If not, see <http://www.gnu.org/licenses/>.
 
 from .block_user import BlockUser
+from .check_username import CheckUsername
 from .delete_profile_photos import DeleteProfilePhotos
 from .get_chat_photos import GetChatPhotos
 from .get_chat_photos_count import GetChatPhotosCount
@@ -34,6 +35,7 @@ from .update_status import UpdateStatus
 
 class Users(
     BlockUser,
+    CheckUsername,
     GetCommonChats,
     GetChatPhotos,
     SetProfilePhoto,

pyrogram/methods/users/check_username.py

@@ -0,0 +1,51 @@
+#  Pyrogram - Telegram MTProto API Client Library for Python
+#  Copyright (C) 2017-present Dan <https://github.com/delivrance>
+#
+#  This file is part of Pyrogram.
+#
+#  Pyrogram is free software: you can redistribute it and/or modify
+#  it under the terms of the GNU Lesser General Public License as published
+#  by the Free Software Foundation, either version 3 of the License, or
+#  (at your option) any later version.
+#
+#  Pyrogram is distributed in the hope that it will be useful,
+#  but WITHOUT ANY WARRANTY; without even the implied warranty of
+#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#  GNU Lesser General Public License for more details.
+#
+#  You should have received a copy of the GNU Lesser General Public License
+#  along with Pyrogram.  If not, see <http://www.gnu.org/licenses/>.
+
+import pyrogram
+from pyrogram import raw
+
+
+class CheckUsername:
+    async def check_username(
+        self: "pyrogram.Client",
+        username: str
+    ) -> bool:
+        """Check if a username is available.
+
+        .. include:: /_includes/usable-by/users.rst
+
+        Parameters:
+            username (``str``):
+                Username to check.
+
+        Returns:
+            ``bool``: True on success.
+
+        Example:
+            .. code-block:: python
+
+                await app.check_username("username")
+        """
+
+        return bool(
+            await self.invoke(
+                raw.functions.account.CheckUsername(
+                    username=username
+                )
+            )
+        )