text: import os
  from .helpers import (ns_os_environ_get, parse_boolean, int_or_none)
  
  __all__ = [
      'LOG_LEVEL', 'TAPISPY_LOG_LEVEL', 'SWAGGERPY_LOG_LEVEL', 'SHOW_CURL',
      'VERBOSE_ERRORS'
  ]
  
  DEFAULT_LOG_LEVEL = 'WARNING'
  LOG_LEVEL = ns_os_environ_get('LOG_LEVEL', DEFAULT_LOG_LEVEL)
  TAPISPY_LOG_LEVEL = ns_os_environ_get('TAPISPY_LOG_LEVEL', LOG_LEVEL)
  SWAGGERPY_LOG_LEVEL = ns_os_environ_get('SWAGGERPY_LOG_LEVEL',
                                          TAPISPY_LOG_LEVEL)
  SHOW_CURL = parse_boolean(ns_os_environ_get('SHOW_CURL', '0'))
  VERBOSE_ERRORS = parse_boolean(ns_os_environ_get('VERBOSE_ERRORS', '1'))
  