input: Write a function called string_contains_number that takes a single string as input and returns True if the string contains any numbers, and False otherwise. If the input string is empty, it should return False. 
  
  Test the function with the following assert statements:
  
  assert string_contains_number("hello123")==True
  assert string_contains_number("world")==False
  assert string_contains_number("!@#$%^&*()")==False
  assert string_contains_number("1a2b3c")==True
  assert string_contains_number("")==False
output: def string_contains_number(s):
      return any(char.isdigit() for char in s)