checkBulkUpload Checks if assets exist by checksums Request Body — REQUIREDassets object[] — REQUIREDchecksum string — REQUIREDbase64 or hex encoded sha1 hashid string — REQUIRED Responses200Schema — OPTIONALresults object[]action stringPossible values: [accept, reject]assetId string — OPTIONALid stringreason string — OPTIONALPossible values: [duplicate, unsupported-format]