How do fix the "missing 1 required positional argument: 'self'" error?

I did some googling but still can’t seem to find a way to solve this error. I have tried just changing the variables but it doesn’t seem to work. What am I doing wrong and what should I do differently?

TypeError: get_process_by_name() missing 1 required positional argument: ‘self’

process = ReadWriteMemory.get_process_by_name(process_name="###########")
process.open()

>Solution :

Use this

process = ReadWriteMemory().get_process_by_name(process_name="###########")
process.open()