code: def view_trends(self, pattern=''):
          
          d = OrderedDict()
          d['Index'] = None
          d['Variable'] = []
          d['Position'] = []
          d['Unit'] = []
          d['Description'] = []
          raw_d = self.filter_trends(pattern)
          d['Index'] = [k for k in raw_d.keys()]
          for st in self.filter_trends(pattern).values():
              st = st.replace('\n', '')
              d['Variable'].append(st.split(' ')[0])
              temp = [x[1:-1] for x in re.findall("\'[\w\(\) \-\:\/]+\'", st)]
              d['Description'].append(temp[-1])
              d['Unit'].append(temp[-2][1:-1])
              pos = " - ".join(temp[: -2]).replace("BRANCH", "Br").replace(":", "")
              d['Position'].append(pos)
          df=pd.DataFrame(d)
          df.index.name = "Filter: {}".format(pattern)
          return df
docs: Return a pandas df with the available trends