input: Write a function to check if a given string contains any numbers. The function should take a string as input and return True if the string contains any numbers, otherwise return False.
  assert string_contains_number("Hello123")==True
  assert string_contains_number("Hello")==False
  assert string_contains_number("123")==True
  assert string_contains_number("Hello World123")==True
  assert string_contains_number("")==False
output: def string_contains_number(s):
      return any(char.isdigit() for char in s)