TensorFlow is a rather famous open-source platform for machine learning. In order to use TensorFlow with Go, you will first need to download a Go package:
$ go get github.com/tensorflow/tensorflow/tensorflow/go
However, for the aforementioned command to work, the C interface for TensorFlow should be already installed. On a macOS Mojave machine, this can be installed as follows:
$ brew install tensorflow
If the C interface is not installed, and you try to install the Go package for TensorFlow, you will get the following error message:
$ go get github.com/tensorflow/tensorflow/tensorflow/go # github.com/tensorflow/tensorflow/tensorflow/go ld: library not found for -ltensorflow clang: error: linker command failed with ...