input: 
  def create_student_marks_dict(names_marks: List[Tuple[str, int]]) -> Dict[str, int]:
      """ Construct a python dictionary containing student names and marks as key-value pairs.
      >>> create_student_marks_dict([("John", 90), ("Levi", 85), ("Jill", 95), ("Sara", 75)])
      {'John': 90, 'Levi': 85, 'Jill': 95, 'Sara': 75}
      """
  
output:     student_marks_dict = {}
      for name, mark in names_marks:
          student_marks_dict[name] = mark
      return student_marks_dict