golang.org/x/oauth2@v0.18.0/google/externalaccount (about) aws.go aws_test.go basecredentials.go basecredentials_test.go executablecredsource.go executablecredsource_test.go filecredsource.go filecredsource_test.go header.go header_test.go programmaticrefreshcredsource.go programmaticrefreshcredsource_test.go testdata urlcredsource.go urlcredsource_test.go