[Python] How to pass in string parameter in python-bdd test

I am trying to write a very simple test using pytest and pytest-bdd. The test runs OK if none of the step definitions have any parameters. However, I cannot seem to get to work the simple passing in of a single string parameter.

Here is my step:

Given the current account balance is "zero"


Here is the step definition:

@given("the current account balance is {arg}")
def current_account_initial_balance(amount):
print(amount)


When I run the test, then this is the output (somewhat edited for clarity):

============================================================= test session starts ==============================================================
platform win32 -- Python 3.11.5, pytest-8.3.3, pluggy-1.5.0rootdir: C:\pythonplugins: bdd-8.0.0
collected 1 item

TestBankTransactions.py F

=========================================================== short test summary info ============================================================
FAILED TestBankTransactions.py::test_deposit_into_account - pytest_bdd.exceptions.StepDefinitionNotFoundError: Step definition is not found: Given "the current account balance is "zero"". Line 6 in sc...
============================================================== 1 failed in 0.02s ===============================================================


I have tried all sorts of googling and different combinations of "' and "" but nothing has worked.

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