code: def discover(f):  # noqa: F811
      return float64
  
imports: from __future__ import print_function, division, absolute_import
  from collections import OrderedDict
  from datetime import datetime, date, time, timedelta
  from itertools import chain
  import re
  from textwrap import dedent
  from types import MappingProxyType
  from warnings import warn
  from dateutil.parser import parse
  import numpy
  from .dispatch import dispatch
  from .coretypes import int32, int64, float64, bool_, complex128, datetime_, Option, var, from_numpy, Tuple, null, Record, string, Null, DataShape, real, date_, time_, Unit, timedelta_, TimeDelta, object_, String
  from .predicates import isdimension, isrecord
  from .py2help import _strtypes, _inttypes
  from .internal_utils import _toposort, groupby
  from .util import subclasses
label_desc: Use image node_id 5 for calling a global function with example usage: discover(f) and returns: float64