// tag::mac[]
[source,shell]
----
export GOOGLE_APPLICATION_CREDENTIALS="/path/to/myproject-5a90ee91d102.json"
----
// end::mac[]

// tag::linux[]
[source,shell]
----
export GOOGLE_APPLICATION_CREDENTIALS="/path/to/myproject-5a90ee91d102.json"
----
// end::linux[]
// tag::win[]
[source,shell]
----
set GOOGLE_APPLICATION_CREDENTIALS="C:\path\to\myproject-5a90ee91d102.json"
----
// end::win[]
