docs: def _to_camel_case(string):
          """Return a camel cased version of the input string.
  
          Args:
              string (str): A snake cased string.
  
          Returns:
              str: A camel cased string.
          """
          components = string.split('_')
          return '%s%s' % (
              components[0],
              ''.join(c.title() for c in components[1:]),
          )