code: def _is_valid_put_block_list_header(header_name):
      """
      Returns:
          True if the specified header name is a valid header for the Put Block List operation,
          False otherwise. For a list of valid headers, see https://docs.microsoft.com/en-us/
          rest/api/storageservices/put-block-list#request-headers and https://docs.microsoft.com/
          en-us/rest/api/storageservices/
          specifying-conditional-headers-for-blob-service-operations#Subheading1.
      """
      return header_name.startswith("x-ms-meta-") or header_name in {
          "Authorization",
          "Date",
          "x-ms-date",
          "x-ms-version",
          "Content-Length",
          "Content-MD5",
          "x-ms-content-crc64",
          "x-ms-blob-cache-control",
          "x-ms-blob-content-type",
          "x-ms-blob-content-encoding",
          "x-ms-blob-content-language",
          "x-ms-blob-content-md5",
          "x-ms-encryption-scope",
          "x-ms-tags",
          "x-ms-lease-id",
          "x-ms-client-request-id",
          "x-ms-blob-content-disposition",
          "x-ms-access-tier",
          "If-Modified-Since",
          "If-Unmodified-Since",
          "If-Match",
          "If-None-Match",
      }
  
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 8 for calling a global function with example usage: _is_valid_put_block_list_header(header_name) and returns: unknown