code: def get_scalar_delta(self, index):
      if index >= (self.number_of_telemetries() - 1):
          return TelemetryPoint()
  
      delta = (
          self.list_of_telemetries[index + 1]
          - self.list_of_telemetries[index]
      )
  
      return delta.time, norm(delta.location), norm(delta.velocity)
  
imports: import glob
  import os
  import sys
  import argparse
  import time
  import numpy
  import carla
label_desc: Use image node_id 7 for calling the TelemetryData obj's underlying member method code with example usage: obj.get_scalar_delta(index) and returns: delta,  norm,  norm, TelemetryPoint