input: Write a python function to get a product's details by its name.
  assert get_product_details("laptop") == {"name": "laptop", "category": "electronics", "price": 899.99}
  assert get_product_details("iphone") == {"name": "iphone", "category": "electronics", "price": 999.99}
  assert get_product_details("headphones") == {"name": "headphones", "category": "electronics", "price": 99.99}
  assert get_product_details("tablet") == {"message": "Product not found"}
output: def get_product_details(name):
      products = {
          "laptop": {"name": "laptop", "category": "electronics", "price": 899.99},
          "iphone": {"name": "iphone", "category": "electronics", "price": 999.99},
          "headphones": {"name": "headphones", "category": "electronics", "price": 99.99},
      }
      return products.get(name, {"message": "Product not found"})