package common import ( "github.com/mitchellh/packer/template/interpolate" ) type VBoxManageConfig struct { VBoxManage [][]string `mapstructure:"vboxmanage"` } func (c *VBoxManageConfig) Prepare(ctx *interpolate.Context) []error { if c.VBoxManage == nil { c.VBoxManage = make([][]string, 0) } return nil }