text: try:
      import boto
      assert boto
  except ImportError:
      from wal_e.exception import UserException
      raise UserException(
          msg='AWS support requires module "boto"',
          hint='Try running "pip install boto".')
  
  from wal_e.blobstore.s3.s3_credentials import Credentials
  from wal_e.blobstore.s3.s3_credentials import InstanceProfileCredentials
  from wal_e.blobstore.s3.s3_util import do_lzop_get
  from wal_e.blobstore.s3.s3_util import sigv4_check_apply
  from wal_e.blobstore.s3.s3_util import uri_get_file
  from wal_e.blobstore.s3.s3_util import uri_put_file
  from wal_e.blobstore.s3.s3_util import write_and_return_error
  
  __all__ = [
      'Credentials',
      'InstanceProfileCredentials',
      'do_lzop_get',
      'sigv4_check_apply',
      'uri_put_file',
      'uri_get_file',
      'write_and_return_error',
  ]
  