readonly type: 'Undefined' | 'Overflow' | 'Unimplemented' | 'UnhandledXcmVersion' | 'UnhandledXcmMessage' | 'UnhandledEffect' | 'EscalationOfPrivilege' | 'UntrustedReserveLocation' | 'UntrustedTeleportLocation' | 'DestinationBufferOverflow' | 'SendFailed' | 'CannotReachDestination' | 'MultiLocationFull' | 'FailedToDecode' | 'BadOrigin' | 'ExceedsMaxMessageSize' | 'FailedToTransactAsset' | 'WeightLimitReached' | 'Wildcard' | 'TooMuchWeightRequired' | 'NotHoldingFees' | 'WeightNotComputable' | 'Barrier' | 'NotWithdrawable' | 'LocationCannotHold' | 'TooExpensive' | 'AssetNotFound' | 'DestinationUnsupported' | 'RecursionLimitReached';