code: def process_params(self, params):
          '''
          Populates the launch data from a dictionary. Only cares about keys in
          the LAUNCH_DATA_PARAMETERS list, or that start with 'custom_' or
          'ext_'.
          '''
          for key, val in params.items():
              if key in LAUNCH_DATA_PARAMETERS and val != 'None':
                  if key == 'roles':
                      if isinstance(val, list):
                          # If it's already a list, no need to parse
                          self.roles = list(val)
                      else:
                          # If it's a ',' delimited string, split
                          self.roles = val.split(',')
                  else:
                      setattr(self, key, touni(val))
              elif 'custom_' in key:
                  self.custom_params[key] = touni(val)
              elif 'ext_' in key:
                  self.ext_params[key] = touni(valf process_params(self, params):
          '''
          Populates the launch data from a dictionary. Only cares about keys in
          the LAUNCH_DATA_PARAMETERS list, or that start with 'custom_' or
          'ext_'.
          '''
          for key, val in params.items():
              if key in LAUNCH_DATA_PARAMETERS and val != 'None':
                  if key == 'roles':
                      if isinstance(val, list):
                          # If it's already a list, no need to parse
                          self.roles = list(val)
                      else:
                          # If it's a ',' delimited string, split
                          self.roles = val.split(',')
                  else:
                      setattr(self, key, touni(val))
              elif 'custom_' in key:
                  self.custom_params[key] = touni(val)
              elif 'ext_' in key:
                  self.ext_params[key] = touni(val)
docs: Populates the launch data from a dictionary. Only cares about keys in
          the LAUNCH_DATA_PARAMETERS list, or that start with 'custom_' or
          'ext_'.