AsUnion returns a [SandboxResponseMountConfigMountsUnion] interface which you.
func (r SandboxResponseMountConfigMount) AsUnion() SandboxResponseMountConfigMountsUnionAsUnion returns a [SandboxResponseMountConfigMountsUnion] interface which you can cast to the specific types for more type safety.
Possible runtime types of the union are [SandboxResponseMountConfigMountsSandboxapiS3BucketMountSpec], [SandboxResponseMountConfigMountsSandboxapiGcsBucketMountSpec], [SandboxResponseMountConfigMountsSandboxapiGitRepoMountSpec].