code: def plot_plane(where="back", texture=None):
      
      fig = gcf()
      xmin, xmax = fig.xlim
      ymin, ymax = fig.ylim
      zmin, zmax = fig.zlim
      if where == "back":
          x = [xmin, xmax, xmax, xmin]
          y = [ymin, ymin, ymax, ymax]
          z = [zmin, zmin, zmin, zmin]
      if where == "front":
          x = [xmin, xmax, xmax, xmin][::-1]
          y = [ymin, ymin, ymax, ymax]
          z = [zmax, zmax, zmax, zmax]
      if where == "left":
          x = [xmin, xmin, xmin, xmin]
          y = [ymin, ymin, ymax, ymax]
          z = [zmin, zmax, zmax, zmin]
      if where == "right":
          x = [xmax, xmax, xmax, xmax]
          y = [ymin, ymin, ymax, ymax]
          z = [zmin, zmax, zmax, zmin][::-1]
      if where == "top":
          x = [xmin, xmax, xmax, xmin]
          y = [ymax, ymax, ymax, ymax]
          z = [zmax, zmax, zmin, zmin]
      if where == "bottom":
          x = [xmax, xmin, xmin, xmax]
          y = [ymin, ymin, ymin, ymin]
          z = [zmin, zmin, zmax, zmax]
      triangles = [(0, 1, 2), (0, 2, 3)]
      u = v = None
      if texture is not None:
          u = [0.0, 1.0, 1.0, 0.0]
          v = [0.0, 0.0, 1.0, 1.0]
      mesh = plot_trisurf(x, y, z, triangles, texture=texture, u=u, v=v)
      return mesh
docs: Plot a plane at a particular location in the viewbox.
  
      :param str where: 'back', 'front', 'left', 'right', 'top', 'bottom'
      :param texture: {texture}
      :return: :any:`Mesh`