docs: def verify(conf, input_requirements_filename):
      """Verifying that given requirements file is not missing any pins
  
      args:
  
      input_requirements_filename: requriements file to verify
  
      """
      exit_if_file_not_exists(input_requirements_filename, conf)
  
      cireqs.check_if_requirements_are_up_to_date(
          requirements_filename=input_requirements_filename,
          **conf._asdict())
      click.echo(click.style('✓', fg='green') + " {} has been verified".format(input_requirements_filename))