C1_W2 Assignment Lab Error

i am facing this error. Please anyone can help to fix this. it seems that the source of this error is the function created in the lab

Hi Ahmed,

There is no error in the lab here! Something is wrong in your code!
I can’t (rather, I shouldn’t) spell it out, but are you sure you want to pass a “string” to the data_config and data_bias_config arguments? Maybe they shouldn’t be a string!