code: def _is_valid_put_block_header(header_name):
      """
      Returns:
          True if the specified header name is a valid header for the Put Block operation, False
          otherwise. For a list of valid headers, see
          https://docs.microsoft.com/en-us/rest/api/storageservices/put-block#request-headers and
          https://docs.microsoft.com/en-us/rest/api/storageservices/put-block#
          request-headers-customer-provided-encryption-keys.
      """
      return header_name in {
          "Authorization",
          "x-ms-date",
          "x-ms-version",
          "Content-Length",
          "Content-MD5",
          "x-ms-content-crc64",
          "x-ms-encryption-scope",
          "x-ms-lease-id",
          "x-ms-client-request-id",
          "x-ms-encryption-key",
          "x-ms-encryption-key-sha256",
          "x-ms-encryption-algorithm",
      }
  
file_path: mlflow/mlflow/azure/client.py
imports: import logging
  import urllib
  from copy import deepcopy
  from mlflow.utils import rest_utils
  from mlflow.utils.file_utils import read_chunk
label_desc: Use image node_id 9 for calling a global function with example usage: _is_valid_put_block_header(header_name) and returns: unknown