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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 modname_source_target_modnamesource_to_modpath( self, spec, modname, source, target, modname_source):
 """ Typical JavaScript tools will get confused if '.js' is added, so by default the same modname is returned as path rather than the target file for the module path to be written to the output file for linkage by tools. Some other tools may desire the target to be returned instead, or construct some other string that is more suitable for the tool that will do the assemble and link step. The modname and source argument provided to aid pedantic tools, but really though this provides more consistency to method signatures. Same as `self.modname_source_target_to_modpath`, but includes the original raw key-value as a 2-tuple. Called by generator method `_gen_modname_source_target_modpath`. """


        return self.modname_source_target_to_modpath(
            spec, modname, source, target)