code: def underscored2camel_case(v):
      
      vlist = v.split('_')
      c = []
      for n, el in enumerate(vlist):
          if el:
              if n == 0:
                  c.append(el)
              else:
                  c.extend([el[0].upper(), el[1:]])
      return ''.join(c)
docs: converts ott_id to ottId.