input: Write a function to create a dictionary that maps student names to their marks. The function should take a list of tuples, where each tuple contains a student's name and their corresponding mark. The function should return the dictionary with all the students' information.
  assert create_student_marks([("John", 90), ("Levi", 85), ("Jill", 95), ("Sara", 75)]) == {"John": 90, "Levi": 85, "Jill": 95, "Sara": 75}
  assert create_student_marks([]) == {}
output: def create_student_marks(students):
      return {name: mark for name, mark in students}