docstr: Retrieves the ``CommissionInfo`` scheme associated with the given
  ``data``
docstr_tok: ["Retrieves","the","``","CommissionInfo","``","scheme","associated","with","the","given","``","data","``"]
code: def getcommissioninfo(self, data):
      """Retrieves the ``CommissionInfo`` scheme associated with the given
      ``data``"""
      if data._name in self.comminfo:
          return self.comminfo[data._name]
  
      return self.comminfo[None]
  
imports: from __future__ import absolute_import, division, print_function, unicode_literals
  from backtrader.comminfo import CommInfoBase
  from backtrader.metabase import MetaParams
  from backtrader.utils.py3 import with_metaclass
  from .None import fillers
  from .None import fillers
label_desc: Use image node_id 7 for calling the BrokerBase obj's underlying member method code with example usage: obj.getcommissioninfo(data) and returns: self, self