Bug: Incorrect tuple-length validation in statetransitionref.py

[seif-galal]

In statetransitionref.py, the validation for TableStructParameter currently contains:

if not isinstance(inner_param_value, tuple) or len(inner_param_value) == 2:
odxraise("Invalid value for table struct parameter")

The len(...) == 2 condition is inverted.

A TableStructParameter expects a tuple containing exactly two values, so the validation should reject tuples whose length is not 2.

Proposed fix

Change:

len(inner_param_value) == 2

to:

len(inner_param_value) != 2