input: from typing import List
  
  def get_average_salary(filename: str) -> float:
      """ Computes the average salary from a given CSV file containing name and salary.
      >>> get_average_salary('salary.csv')
      2000.0
      """
output:     total_salary = 0
      count = 0
      with open(filename, 'r') as file:
          next(file)  # Skip the header
          for line in file:
              name, salary = line.strip().split(',')
              total_salary += float(salary)
              count += 1
      return total_salary / count if count > 0 else 0.0