Imports golang.org/x/crypto/ssh/agent github.com/pkg/sftp github.com/hashicorp/packer-plugin-sdk/packer github.com/hashicorp/packer-plugin-sdk/tmp golang.org/x/crypto/ssh golang.org/x/crypto/ssh/terminal golang.org/x/net/proxy Standard library imports bufio bytes context errors fmt io io/ioutil log net os path/filepath strconv strings time