Imports github.com/mitchellh/iochan github.com/zclconf/go-cty/cty github.com/hashicorp/go-getter/v2 github.com/hashicorp/hcl/v2/hcldec github.com/hashicorp/packer-plugin-sdk/template/config Standard library imports unicode os/signal context errors fmt io io/ioutil log os path/filepath strings sync syscall testing time bytes