code: def rate_gib_month_to_mib_msec(rate_gib_month):
      # average number of days per month = 365.25 / 12 = 30.4375
      avg_n_days_per_month = 30.4375
      rate_gib_hour = rate_gib_month / avg_n_days_per_month / 24
      return rate_gib_hour_to_mib_msec(rate_gib_hour)
  
label_desc: Use image node_id 3 for calling a global function with example usage: rate_gib_month_to_mib_msec(rate_gib_month) and returns: rate_gib_hour_to_mib_msec