input: Write a function to create a Python dictionary containing student names and their corresponding marks. Provide a list of tuples where each tuple consists of a student name and their mark. The function should return the dictionary.
  assert build_student_marks([("John", 90), ("Levi", 85), ("Jill", 95), ("Sara", 75)])=={ 
      "John" : 90, 
      "Levi" : 85, 
      "Jill" : 95, 
      "Sara" : 75
  }
  assert build_student_marks([("Alex", 88), ("Rachel", 79)])=={
      "Alex": 88,
      "Rachel": 79
  }
  assert build_student_marks([])=={}
output: def build_student_marks(student_tuples):
      return {name: mark for name, mark in student_tuples}