Bazelisk is a wrapper for Bazel written in Go. It automatically picks a good version of Bazel given your current working directory, downloads it from the official server (if required) and then transparently passes through all command-line arguments to the real Bazel binary. You can call it just like you would call Bazel.
More information about bazelisk can be found in official bazelisk repo
We included four bazelisk binaries in our repo. These are downloaded from bazelisk release page, with version v1.11.0