@classmethod
  def get_option_scope_help_info_from_parser(cls, parser):
    return cls(parser.scope).get_option_scope_help_info(parser.option_registrations_iter())
Given a DSN, returns an instantiated backend class.
dataset/ETHPy150Open pantsbuild/pants/src/python/pants/help/help_info_extracter.py/HelpInfoExtracter.get_option_scope_help_info_from_parser--crossover with--dataset/ETHPy150Open toastdriven/alligator/alligator/gator.py/Gator.build_backend