Your ansible memcached Generate would turn into this

memcached.go

// GenerateMemcachedAnsibleSample will call all actions to create the directory and generate the sample
// The Context to run the samples are not the same in the e2e test. In this way, note that it should NOT
// be called in the e2e tests since it will call the Prepare() to set the sample context and generate the files
// in the testdata directory. The e2e tests only ought to use the Run() method with the TestContext.
func GenerateMemcachedAnsibleSample(samplesPath string) {

    ctx, err := pkg.NewSampleContext(testutils.BinaryName,
        pkg.WithPath(filepath.Join(samplesPath, "ansible/memcached-operator")),
        pkg.WithEnvironment("GO111MODULE=on"),
    )
    pkg.CheckError("generating ansible memcached context", err)

    memcached := NewMemcachedAnsible(&ctx)
    memcached.Prepare()
    memcached.Run()
}