input: Write a function to develop a regular expression in Python to match all numeric strings. If the given string matches the pattern, return True. Otherwise, return False. If the given string is empty, return False.
  assert match_numeric_string("123456789")==True
  assert match_numeric_string("abc123")==False
  assert match_numeric_string("123abc")==False
  assert match_numeric_string("0")==True
  assert match_numeric_string("")==False
output: def match_numeric_string(s):
      import re
      if not s:
          return False
      return bool(re.fullmatch(r'\d+', s))