How to use the azure-storage-file.azure.storage.file.sharedaccesssignature._FileSharedAccessHelper function in azure-storage-file

Response header value for Cache-Control when resource is accessed
            using this shared access signature.
        :param str content_disposition:
            Response header value for Content-Disposition when resource is accessed
            using this shared access signature.
        :param str content_encoding:
            Response header value for Content-Encoding when resource is accessed
            using this shared access signature.
        :param str content_language:
            Response header value for Content-Language when resource is accessed
            using this shared access signature.
        :param str content_type:
            Response header value for Content-Type when resource is accessed
            using this shared access signature.
        '''
        sas = _FileSharedAccessHelper()
        sas.add_base(permission, expiry, start, ip, protocol, self.x_ms_version)
        sas.add_id(id)
        sas.add_resource('s')
        sas.add_override_response_headers(cache_control, content_disposition,
                                          content_encoding, content_language,
                                          content_type)
        sas.add_resource_signature(self.account_name, self.account_key, share_name)

        return sas.get_token()

def __init__(self):
        super(_FileSharedAccessHelper, self).__init__()

:param str content_encoding:
            Response header value for Content-Encoding when resource is accessed
            using this shared access signature.
        :param str content_language:
            Response header value for Content-Language when resource is accessed
            using this shared access signature.
        :param str content_type:
            Response header value for Content-Type when resource is accessed
            using this shared access signature.
        '''
        resource_path = share_name
        if directory_name is not None:
            resource_path += '/' + _to_str(directory_name)
        resource_path += '/' + _to_str(file_name)

        sas = _FileSharedAccessHelper()
        sas.add_base(permission, expiry, start, ip, protocol, self.x_ms_version)
        sas.add_id(id)
        sas.add_resource('f')
        sas.add_override_response_headers(cache_control, content_disposition,
                                          content_encoding, content_language,
                                          content_type)
        sas.add_resource_signature(self.account_name, self.account_key, resource_path)

        return sas.get_token()