code: def setup_subparser(cls, subparser):
      describe_tables_parser = generate_subparser(
          subparser,
          "describe-tables",
          description="Shows metadata about all currently configured LookupTables",
          subcommand=True,
      )
  
      set_parser_epilog(
          describe_tables_parser,
          epilog=(
              """\
                  Examples:
  
                      manage.py lookup-tables describe-tables
                  """
          ),
      )
  
imports: import copy
  import json
  from streamalert.shared.logger import get_logger
  from streamalert.shared.lookup_tables.core import LookupTables
  from streamalert.shared.lookup_tables.utils import LookupTablesMagic
  from streamalert_cli.utils import CLICommand, generate_subparser, set_parser_epilog
label_desc: Use image node_id 1 for calling the LookupTablesDescribeTablesSubCommand obj's underlying member method code with example usage: obj.setup_subparser(cls, subparser) without return types