code: def to_camel_case(s):
      
  
      def to_upper(match):
          return match.group(0)[-1].upper()
  
      return re.sub('(^|[_\W])+[a-zA-Z]', to_upper, s)
docs: Convert names with under score (_) separation into camel case names.
  
      :param s: string in under_score notation
      :returns: string in CamelCase notation
  
      Example:
      >>> to_camel_case("table_name") # yields "TableName"