code: def parse_enum_(self):
      self.expect_keyword_("ENUM")
      location = self.cur_token_location_
      enum = ast.Enum(self.parse_coverage_(), location=location)
      self.expect_keyword_("END_ENUM")
      return enum
  
imports: import fontTools.voltLib.ast
  from fontTools.voltLib.lexer import Lexer
  from fontTools.voltLib.error import VoltLibError
  from io import open
label_desc: Use image node_id 21 for calling the Parser obj's underlying member method code with example usage: obj.parse_enum_() and returns: enum