in e2etestrunner/setuptf/setuptf.go [226:235]
func tfVarMapToArgs(
projectID string,
tfVars map[string]string,
) []string {
tfVarArgs := []string{fmt.Sprintf("-var=project_id=%v", projectID)}
for k, v := range tfVars {
tfVarArgs = append(tfVarArgs, fmt.Sprintf("-var=%v=%v", k, v))
}
return tfVarArgs
}