code: def get_value(args):
      """Get one value from configuration."""
      # while this will make get_value quite a bit slower we must initialize configuration
      # for providers because we do not know what sections and options will be available after
      # providers are initialized. Theoretically Providers might add new sections and options
      # but also override defaults for existing options, so without loading all providers we
      # cannot be sure what is the final value of the option.
      if not conf.has_option(args.section, args.option):
          raise SystemExit(
              f"The option [{args.section}/{args.option}] is not found in config."
          )
  
      value = conf.get(args.section, args.option)
      print(value)
  
file_path: airflow/airflow/cli/commands/config_command.py
imports: from __future__ import annotations
  from io import StringIO
  import pygments
  from pygments.lexers.configs import IniLexer
  from airflow.configuration import conf
  from airflow.utils.cli import should_use_colors
  from airflow.utils.code_utils import get_terminal_formatter
  from airflow.utils.providers_configuration_loader import providers_configuration_loaded
label_desc: Use image node_id 2 for calling a global function with example usage: get_value(args) without return types