else:
# SHA-OUT keys
# source https://viveum.v-psp.com/Ncol/Viveum_e-Com-BAS_EN.pdf
- return [
+ keys = [
'AAVADDRESS',
'AAVCHECK',
'AAVMAIL',
'TRXDATE',
'VC'
]
+ return key.upper() in keys
items = sorted((k.upper(), v) for k, v in values.items())
sign = ''.join('%s=%s%s' % (k, v, key) for k, v in items if v and filter_key(k))