SCL Residential Proxy Account fails to log in

[hacsathon]

Hi - I have a "Residential Proxy" account with Seattle City Light that lets me view usage data but not pay bills, it looks like the SCL integration doesn't handle that well even though I can log into the account and view usage online:

:/config# python3 -m opower --utility scl --username ${USERNAME} --password "${PASSWORD}"
Traceback (most recent call last):
  File "<frozen runpy>", line 198, in _run_module_as_main
  File "<frozen runpy>", line 88, in _run_code
  File "/usr/local/lib/python3.13/site-packages/opower/__main__.py", line 214, in <module>
    asyncio.run(_main())
    ~~~~~~~~~~~^^^^^^^^^
  File "/usr/local/lib/python3.13/asyncio/runners.py", line 194, in run
    return runner.run(main)
           ~~~~~~~~~~^^^^^^
  File "/usr/local/lib/python3.13/asyncio/runners.py", line 118, in run
    return self._loop.run_until_complete(task)
           ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^
  File "/usr/local/lib/python3.13/asyncio/base_events.py", line 721, in run_until_complete
    return future.result()
           ~~~~~~~~~~~~~^^
  File "/usr/local/lib/python3.13/site-packages/opower/__main__.py", line 93, in _main
    await opower.async_login()
  File "/usr/local/lib/python3.13/site-packages/opower/opower.py", line 199, in async_login
    self.access_token = await self.utility.async_login(
                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
        self.session, self.username, self.password, self.optional_mfa_secret
        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    )
    ^
  File "/usr/local/lib/python3.13/site-packages/opower/utilities/scl.py", line 202, in async_login
    raise InvalidAuth("No accounts found")
opower.exceptions.InvalidAuth: No accounts found

[hacsathon]

I've been able to get past the issue in scl.py by replacing line 202 with the following to also get residential proxy accounts (after the original if len(accounts) == 0):

            async with session.post(
                "https://myutilities.seattle.gov/rest/account/shared/usage",
                json={
                    "accountContext": {},
                    "customerId": customer_id,
                    "csrId": username,
                },
                headers={
                    "User-Agent": USER_AGENT,
                    "Authorization": f"Bearer {access_token}",
                },
                raise_for_status=True,
            ) as resp:
                list_result = await resp.json()
            accounts = list_result["account"]

            if len(accounts) == 0:
                raise InvalidAuth("No accounts found")

but now there's an error in the opower.py:

Traceback (most recent call last):
  File "<frozen runpy>", line 198, in _run_module_as_main
  File "<frozen runpy>", line 88, in _run_code
  File "/usr/local/lib/python3.13/site-packages/opower/__main__.py", line 214, in <module>
    asyncio.run(_main())
    ~~~~~~~~~~~^^^^^^^^^
  File "/usr/local/lib/python3.13/asyncio/runners.py", line 194, in run
    return runner.run(main)
           ~~~~~~~~~~^^^^^^
  File "/usr/local/lib/python3.13/asyncio/runners.py", line 118, in run
    return self._loop.run_until_complete(task)
           ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^
  File "/usr/local/lib/python3.13/asyncio/base_events.py", line 721, in run_until_complete
    return future.result()
           ~~~~~~~~~~~~~^^
  File "/usr/local/lib/python3.13/site-packages/opower/__main__.py", line 97, in _main
    for forecast in await opower.async_get_forecast():
                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.13/site-packages/opower/opower.py", line 249, in async_get_forecast
    for customer in await self._async_get_customers():
                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.13/site-packages/opower/opower.py", line 333, in _async_get_customers
    async with self.session.get(
               ~~~~~~~~~~~~~~~~^
        url, headers=self._get_headers(), raise_for_status=True
        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    ) as resp:
    ^
  File "/usr/local/lib/python3.13/site-packages/aiohttp/client.py", line 1423, in __aenter__
    self._resp: _RetType = await self._coro
                           ^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.13/site-packages/aiohttp/client.py", line 832, in _request
    resp.raise_for_status()
    ~~~~~~~~~~~~~~~~~~~~~^^
  File "/usr/local/lib/python3.13/site-packages/aiohttp/client_reqrep.py", line 1157, in raise_for_status
    raise ClientResponseError(
    ...<5 lines>...
    )
aiohttp.client_exceptions.ClientResponseError: 403, message='Forbidden', url='https://scl.opower.com/ei/edge/apis/multi-account-v1/cws/scl/customers?offset=0&batchSize=100&addressFilter='