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-- @module ProtocolIAP
-- @extend PluginProtocol
-- @parent_module plugin
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-- brief pay result callback
-- @function [parent=#ProtocolIAP] onPayResult
-- @param self
-- @param #int ret
-- @param #char msg
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-- brief config the developer info
-- param devInfo This parameter is the info of developer,
-- different plugin have different format
-- warning Must invoke this interface before other interfaces.
-- And invoked only once.
-- @function [parent=#ProtocolIAP] configDeveloperInfo
-- @param self
-- @param #map_table devInfo
return nil