class_docstr: A DataShape parser object.
class_docstr_tok: ["A","DataShape","parser","object","."]
docstr: integer : INTEGER
docstr_tok: ["integer",":","INTEGER"]
code: def parse_integer(self):
      """
      integer : INTEGER
      """
      if self.tok.id == lexer.INTEGER:
          val = self.tok.val
          self.advance_tok()
          return val
      else:
          return None
  
imports: from __future__ import absolute_import, division, print_function
  from .None import lexer, error
  from .None import coretypes
label_desc: Use image node_id 15 for calling the DataShapeParser obj's underlying member method code with example usage: obj.parse_integer() and returns: val, None