Golang : Shortening import identifier

In Golang, we often import external packages from third party sources and ended with import statement that look like this example :

 import (
  "bytes"
  "github.com/somelongname/verylongnamepackage"
  "fmt"
  "github.com/disintegration/imaging"
  "image"
 )

now, if you don't want to type in the verylongnamepackage each time you want to call a function in it. You can shorten the verylongnamepackage.

just change to

 import (
  "bytes"
  vlongname "github.com/somelongname/verylongnamepackage"
  "fmt"
  IG "github.com/disintegration/imaging"
  "image"
 )

and then instead of verylongnamepackage.SomeFunction(), you just invoke it by vlongname.SomeFunction().