docs: def processMeme(imgParams):
      '''
      Wrapper function for genMeme() and findMeme()
      imgParams may be a string of the following forms:
      * 'text0 | text1'
      * 'text0'
      * ' | text1'
  
      Fails gracefully when it can't find or generate a meme
      by returning an appropriate image url with the failure
      message on it.
      '''
  
      template_id = findMeme(imgParams)
  
      if template_id is None:
          print("Couldn't find a suitable match for meme :(")
          return meme_not_supported
  
      # if template_id exists
      imgParams = imgParams.split('|')
  
      if len(imgParams) == 2 or len(imgParams) == 1:
          text0 = imgParams[0]
  
          if len(imgParams) == 2:
              text1 = imgParams[1]    # Bottom text text1 exists
          elif len(imgParams) == 1:
              text1 = ''              # No bottom text
  
          imgURL = genMeme(template_id, text0, text1)
  
          if imgURL is None:          # Couldn't generate meme
              print("Couldn't generate meme :(")
              return couldnt_create_meme
          else:                       # Success!
              # print(imgURL)
              return imgURL
  
      elif len(imgParams) > 2:
          print("Too many lines of captions! Cannot create meme.")
          return too_many_lines
  
      elif len(imgParams) < 1:        # No top text text0 exists
          print("Too few lines of captions! Cannot create meme.")
          return too_few_lines