TransportEntry
Parameters and properties
Section titled “Parameters and properties”keyRequiredstringLogical key: /-separated segments of letters, digits, ., _ and -, none starting with a dot, up to 512 characters. It is not a file path or URL.revisionRequiredstringOpaque token of this version, passed as ifRevision to replace or remove it. It changes on every write and is not a content digest.sizeRequirednumberPayload size in bytes, excluding the transport envelope and backend storage overhead.modifiedAtRequiredstringISO timestamp of the stored version; retention computes object age from it.