isTxMetadataAttrNumber
export function isTxMetadataAttrNumber(attr: PermissiveTxMetadataAttr): attr is numberArguments
1. attr
attr: PermissiveTxMetadataAttrReturns
attr is number
export function isTxMetadataAttrNumber(attr: PermissiveTxMetadataAttr): attr is numberattrattr: PermissiveTxMetadataAttrattr is number