AsUnion returns a [SandboxMountConfigAuthAwsUnion] interface which you can cast.
func (r SandboxMountConfigAuthAws) AsUnion() SandboxMountConfigAuthAwsUnionAsUnion returns a [SandboxMountConfigAuthAwsUnion] interface which you can cast to the specific types for more type safety.
Possible runtime types of the union are [SandboxMountConfigAuthAwsSandboxesSandboxAwsMountRoleAuthConfig], [SandboxMountConfigAuthAwsSandboxesSandboxAwsMountStaticAuthConfig].