class_docstr: A class to load, modify, and display the StreamAlertCLI Config
docstr: Set the AWS Account ID in Global settings
docstr_tok: ["Set","the","AWS","Account","ID","in","Global","settings"]
code: def set_aws_account_id(self, aws_account_id):
      """Set the AWS Account ID in Global settings"""
      if not re.search(r"\A\d{12}\Z", aws_account_id):
          LOGGER.error("Invalid AWS Account ID, must be 12 digits long")
          return False
  
      self.config["global"]["account"][
          "aws_account_id"
      ] = aws_account_id
      self.write()
  
      LOGGER.info("AWS Account ID successfully configured")
      return True
  
imports: import json
  import os
  import re
  import shutil
  import string
  import tempfile
  from streamalert.apps import StreamAlertApp
  from streamalert.shared import CLUSTERED_FUNCTIONS, config, metrics
  from streamalert.shared.logger import get_logger
  from streamalert_cli.terraform import TERRAFORM_FILES_PATH
  from streamalert_cli.apps.helpers import save_app_auth_info
  from streamalert_cli.helpers import continue_prompt
label_desc: Use image node_id 12 for calling the CLIConfig obj's underlying member method code with example usage: obj.set_aws_account_id(aws_account_id) and returns: True, False