type github.com/aws/smithy-go/internal/sync/singleflight.Group

6 uses

	github.com/aws/smithy-go/internal/sync/singleflight (current package)
		singleflight.go#L66: type Group struct {
		singleflight.go#L84: func (g *Group) Do(key string, fn func() (interface{}, error)) (v interface{}, err error, shared bool) {
		singleflight.go#L114: func (g *Group) DoChan(key string, fn func() (interface{}, error)) <-chan Result {
		singleflight.go#L137: func (g *Group) doCall(c *call, key string, fn func() (interface{}, error)) {
		singleflight.go#L203: func (g *Group) Forget(key string) {

	github.com/aws/smithy-go/auth/bearer
		token_cache.go#L75: 	sfGroup                singleflight.Group