tie my %rating_method, 'Tie::IxHash',
'prefix' => 'Rate calls by using destination prefix to look up a region and rate according to the internal prefix and rate tables',
# 'upstream' => 'Rate calls based on upstream data: If the call type is "1", map the upstream rate ID directly to an internal rate (rate_detail), otherwise, pass the upstream price through directly.',
tie my %rating_method, 'Tie::IxHash',
'prefix' => 'Rate calls by using destination prefix to look up a region and rate according to the internal prefix and rate tables',
# 'upstream' => 'Rate calls based on upstream data: If the call type is "1", map the upstream rate ID directly to an internal rate (rate_detail), otherwise, pass the upstream price through directly.',