fix: Fix Optional issue (#127)

Author: GuyKh

Diff for: iec_api/iec_client.py

@@ -275,8 +275,8 @@ async def send_consumption_report_to_mail(
         self,
         email: str,
         contract_id: Optional[str | int] = None,
-        device_id: Optional(str | int) = None,
-        device_code: Optional(str | int) = None
+        device_id: Optional[str | int] = None,
+        device_code: Optional[str | int] = None
     ) -> bool:
         """
         Send Consumption Report to Mail

Diff for: pyproject.toml

@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "iec-api"
-version = "0.4.0"
+version = "0.4.1"
 description = "A Python wrapper for Israel Electric Company API"
 authors = ["GuyKh"]
 license = "MIT"