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