input: Write a function to determine the type of a triangle given the lengths of its three sides.
  assert get_triangle_type(3, 3, 3) == "Equilateral"
  assert get_triangle_type(3, 4, 3) == "Isosceles"
  assert get_triangle_type(3, 4, 5) == "Scalene"
  assert get_triangle_type(5, 5, 8) == "Isosceles"
output: def get_triangle_type(a, b, c):
      if a == b == c:
          return "Equilateral"
      elif a == b or b == c or a == c:
          return "Isosceles"
      else:
          return "Scalene"