Returns a list of the files under the specified path

def listdir(self, url):
        """Returns a list of the files under the specified path"""
        params = self._split_url(url)

        block_blob_service = self._block_blob_service(
            account_name=params["account"], sas_token=params["sas_token"]
        )
        blobs = block_blob_service.list_blobs(params["container"])
        return blobs