how to get name of gradient noise in shader graph unity?

I need to get a procedural texture from the shader graph, namely Gradient Noise. That is, Procedural → Noise → Gradient Noise and the name of this particular texture.
In order for me to use for… (where the asterisks are there I use this)

private void SetVatiables()
        wavesDisplacement = (Texture2D)oceanMaterial.GetTexture("*Name of Gradient Noise*");