The Patch() method was intended to skip any records that do not
currently exist. However, currently inmemory.Backend.Patch() will return
ErrNotFound if the last record in the records slice is not found (it
will ignore any other previous records that are not found).
Update the error handling logic here to be consistent with the postgres
backend, and add a unit test to exercise this case.
Add a new Patch() method that updates specific fields of an existing
record's data, based on a field mask.
Extract some logic from the existing Get() and Put() methods so it can
be shared with the new Patch() method.
* databroker: add support for putting multiple records
* add OptimumPutRequestsFromRecords function
* replace GetAll with SyncLatest
* fix stream when there are no records
* refactor backend, implement encrypted store
* refactor in-memory store
* wip
* wip
* wip
* add syncer test
* fix redis expiry
* fix linting issues
* fix test by skipping non-config records
* fix backoff import
* fix init issues
* fix query
* wait for initial sync before starting directory sync
* add type to SyncLatest
* add more log messages, fix deadlock in in-memory store, always return server version from SyncLatest
* update sync types and tests
* add redis tests
* skip macos in github actions
* add comments to proto
* split getBackend into separate methods
* handle errors in initVersion
* return different error for not found vs other errors in get
* use exponential backoff for redis transaction retry
* rename raw to result
* use context instead of close channel
* store type urls as constants in databroker
* use timestampb instead of ptypes
* fix group merging not waiting
* change locked names
* update GetAll to return latest record version
* add method to grpcutil to get the type url for a protobuf type
