input: Write a function to create a dictionary containing student names and their corresponding marks as key-value pairs. If the input is empty, return an empty dictionary.
  def construct_student_marks():
      student_marks = { 
          "John" : 90, 
          "Levi" : 85, 
          "Jill" : 95, 
          "Sara" : 75
      }
      return student_marks
  
  assert construct_student_marks() == { 
      "John" : 90, 
      "Levi" : 85, 
      "Jill" : 95, 
      "Sara" : 75
  }
  assert construct_student_marks() == { 
      "John" : 90, 
      "Levi" : 85, 
      "Jill" : 95, 
      "Sara" : 75
  }
  assert construct_student_marks() == { 
      "John" : 90, 
      "Levi" : 85, 
      "Jill" : 95, 
      "Sara" : 75
  }
  assert construct_student_marks() == { 
      "John" : 90, 
      "Levi" : 85, 
      "Jill" : 95, 
      "Sara" : 75
  }
  assert construct_student_marks() == { 
      "John" : 90, 
      "Levi" : 85, 
      "Jill" : 95, 
      "Sara" : 75
  }
output: def construct_student_marks():
      student_marks = { 
          "John" : 90, 
          "Levi" : 85, 
          "Jill" : 95, 
          "Sara" : 75
      }
      return student_marks