code: def setup_subparser(cls, subparser):
      set_parser = generate_subparser(
          subparser,
          "set-from-json-file",
          description="Pushes the contents of a given json file into the LookupTable key",
          subcommand=True,
      )
  
      set_parser_epilog(
          set_parser,
          epilog=(
              """\
                  Examples:
  
                      manage.py lookup-tables set-from-json-file -t [table] -k [key] -f \
  [path/to/file.json]
                  """
          ),
      )
  
      set_parser.add_argument(
          "-t", "--table", help="Name of the LookupTable", required=True
      )
  
      set_parser.add_argument(
          "-k",
          "--key",
          help="Key to modify on the LookupTable",
          required=True,
      )
  
      set_parser.add_argument(
          "-f",
          "--file",
          help="Path to the json file, relative to the current working directory",
          required=True,
      )
  
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 LookupTablesSetFromFile obj's underlying member method code with example usage: obj.setup_subparser(cls, subparser) without return types