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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:

def search(query, results=10, suggestion=False):
  '''
  Do a Wikipedia search for `query`.

  Keyword arguments:

  * results - the maxmimum number of results returned
  * suggestion - if True, return results and suggestion (if any) in a tuple
  '''

  search_params = {
    'list': 'search',
    'srprop': '',
    'srlimit': results,
    'limit': results,
    'srsearch': query
  }
  if suggestion:
    search_params['srinfo'] = 'suggestion'

  raw_results = _wiki_request(search_params)

  if 'error' in raw_results:
    if raw_results['error']['info'] in ('HTTP request timed out.', 'Pool queue is full'):
      raise HTTPTimeoutError(query)
    else:
      raise WikipediaException(raw_results['error']['info'])

  search_results = (d['title'] for d in raw_results['query']['search'])

  if suggestion:
    if raw_results['query'].get('searchinfo'):
      return list(search_results), raw_results['query']['searchinfo']['suggestion']
    else:
      return list(search_results), None

  return list(search_results)