feat(bigtable): Reroute Mutations Batcher to use data client - #18200

feat(bigtable): Reroute Mutations Batcher to use data client#18200

daniel-sanche wants to merge 9 commits into

shim/12-batcher-callbackgoogleapis/google-cloud-python:shim/12-batcher-callbackfrom

shim/13-mutations-batchergoogleapis/google-cloud-python:shim/13-mutations-batcherCopy head branch name to clipboard