code: def sequenceOfFloatsLe(string):
      """
      A custom type for the argparse commandline parser.
      Accepts only colon-separated lists of valid float values that are less than or
      equal to 0.
  
      Examples
      --------
  
      >>> parser.add_argument('argname', type=sequenceOfFloatsLe, help='help')
  
      """
      value = sequenceOfFloats(string)
      return __sequenceLe(value)
  
imports: import argparse
  import itertools
  import os
label_desc: Use image node_id 13 for calling a global function with example usage: sequenceOfFloatsLe(string) and returns: __sequenceLe