class_docstr: Shared methods between Point and Line
class_docstr_tok: ["Shared","methods","between","Point","and","Line"]
code: def y_label(self):
      return self.y
  
imports: from __future__ import annotations
  from packaging.version import Version
  import numpy
  from toolz import memoize
  from datashader.glyphs.glyph import Glyph
  from datashader.utils import isreal, ngjit
  from numba import cuda
label_desc: Use image node_id 6 for calling the _PointLike obj's underlying member method code with example usage: obj.y_label() and returns: self