
    Write a function that calculates the total scanning boundary length required for AI content moderation when analyzing a square-shaped social media post preview, given the preview's pixel dimension as input. The scanning boundary represents the perimeter path that the AI system must traverse to assess the edges of potentially harmful content.
    

    
def square_perimeter(a):
    """
    Write a function that calculates the total scanning boundary length required for AI content moderation when analyzing a square-shaped social media post preview, given the preview's pixel dimension as input. The scanning boundary represents the perimeter path that the AI system must traverse to assess the edges of potentially harmful content.
    

    """
def square_perimeter(a):
    """
    Write a function that calculates the total scanning boundary length required for AI content moderation when analyzing a square-shaped social media post preview, given the preview's pixel dimension as input. The scanning boundary represents the perimeter path that the AI system must traverse to assess the edges of potentially harmful content.
    

    """
    perimeter = 4 * a
    return perimeter