code: def class_check(vector):
      """
      Check different items in matrix classes.
  
      :param vector: input vector
      :type vector: list
      :return: bool
      """
      for i in vector:
          if not isinstance(i, type(vector[0])):
              return False
      return True
  
imports: from __future__ import division
  import sys
  import math
  import numpy
  import re
  from .pycm_param import *
  from .pycm_error import pycmMatrixError
  from warnings import warn
  from functools import wraps
label_desc: Use image node_id 8 for calling a global function with example usage: class_check(vector) and returns: True, False