To get the package, execute:
go get gopkg.in/yaml.v1/tree/287cf08546ab5e7e37d55a84f7ed3fd1db036de5
To import this package, add the following line to your code:
import "gopkg.in/yaml.v1/tree/287cf08546ab5e7e37d55a84f7ed3fd1db036de5"
For more details, see the API documentation.