def observe_multi(self, keys, master_only=False):
        return _Base.observe_multi(self, keys, master_only=master_only)
Converts the tree to a FieldMask.
dataset/ETHPy150Open couchbase/couchbase-python-client/couchbase/bucket.py/Bucket.observe_multi--crossover with--dataset/ETHPy150Open GoogleCloudPlatform/python-compat-runtime/appengine-compat/exported_appengine_sdk/google/net/proto2/python/internal/well_known_types.py/_FieldMaskTree.ToFieldMask