code: def float_or_string(column, value):
      return csvutils.float_or_string(value)
  
imports: import abc
  import datetime
  import six
  from pyalgotrade.utils import dt
  from pyalgotrade.utils import csvutils
  from pyalgotrade.feed import memfeed
label_desc: Use image node_id 1 for calling a global function with example usage: float_or_string(column, value) and returns: csvutils