class_docstr: An ASCII picture.
  The pictures are represented as a list of equal length strings.
class_docstr_tok: ["An","ASCII","picture",".","The","pictures","are","represented","as","a","list","of","equal","length","strings","."]
docstr: Precede object by a slash of the proper size.
          
docstr_tok: ["Precede","object","by","a","slash","of","the","proper","size","."]
code: def leftslash(self):
      """Precede object by a slash of the proper size."""
      # XXX not used anywhere ?
      height = (
          max(self.baseline, self.height() - 1 - self.baseline) * 2 + 1
      )
      slash = "\n".join(
          " " * (height - i - 1) + xobj("/", 1) + " " * i
          for i in range(height)
      )
      return self.left(stringPict(slash, height // 2))
  
imports: import shutil
  from .pretty_symbology import hobj, vobj, xsym, xobj, pretty_use_unicode, line_width, center
  from sympy.utilities.exceptions import sympy_deprecation_warning
label_desc: Use image node_id 12 for calling the stringPict obj's underlying member method code with example usage: obj.leftslash() and returns: self