code: def _prepare_transforms(self, view):
      data_doc = view.get_transform("visual", "document")
      doc_px = view.get_transform("document", "framebuffer")
      px_ndc = view.get_transform("framebuffer", "render")
      vert = view.view_program.vert
      vert["transform"] = data_doc
      vert["doc_px_transform"] = doc_px
      vert["px_ndc_transform"] = px_ndc
  
imports: from __future__ import division
  from functools import lru_cache
  import numpy
  from ...None import gloo, glsl
  from ...color import Color, ColorArray, get_colormap
  from ..shaders import Function
  from ..visual import Visual, CompoundVisual
  from ...util.profiler import Profiler
  from .dash_atlas import DashAtlas
label_desc: Use image node_id 2 for calling the _AggLineVisual obj's underlying member method code with example usage: obj._prepare_transforms(view) without return types