input: from typing import List
  
  
  def get_average_salary(filename: str) -> float:
      """ Compute the average salary of people from a CSV file.
      >>> get_average_salary('salary.csv')
      2000.0
      """
output:     
      total_salary = 0
      count = 0
      with open(filename, 'r') as file:
          for line in file:
              try:
                  salary = float(line.strip())
                  total_salary += salary
                  count += 1
              except ValueError:
                  continue
      if count == 0:
          return 0.0
      return total_salary / count
  