Type guard for UptoNearPayload.
Checks that the data has the correct structure for a NEAR upto payload, distinguishing it from exact-direct payloads.
The data to check
True if the data is a valid UptoNearPayload
Type guard for UptoNearPayload.
Checks that the data has the correct structure for a NEAR upto payload, distinguishing it from exact-direct payloads.