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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 run(self, conn, tmp, module_name, module_args, inject):
        ''' handler for template operations '''

        if not self.runner.is_playbook:
            raise errors.AnsibleError("in current versions of ansible, templates are only usable in playbooks")

        # load up options
        options  = utils.parse_kv(module_args)
        source   = options.get('src', None)
        dest     = options.get('dest', None)

        if (source is None and 'first_available_file' not in inject) or dest is None:
            result = dict(failed=True, msg="src and dest are required")
            return ReturnData(conn=conn, comm_ok=False, result=result)

        # if we have first_available_file in our vars
        # look up the files and use the first one we find as src
        if 'first_available_file' in inject:
            found = False
            for fn in self.runner.module_vars.get('first_available_file'):
                fnt = utils.template(self.runner.basedir, fn, inject)
                fnd = utils.path_dwim(self.runner.basedir, fnt)
                if os.path.exists(fnd):
                    source = fnt
                    found = True
                    break
            if not found:
                result = dict(failed=True, msg="could not find src in first_available_file list")
                return ReturnData(conn=conn, comm_ok=False, result=result)
        else:
            source = utils.template(self.runner.basedir, source, inject)

        if dest.endswith("/"):
            base = os.path.basename(source)
            dest = os.path.join(dest, base)

        # template the source data locally & transfer
        try:
            resultant = utils.template_from_file(self.runner.basedir, source, inject)
        except Exception, e:
            result = dict(failed=True, msg=str(e))
            return ReturnData(conn=conn, comm_ok=False, result=result)

        xfered = self.runner._transfer_str(conn, tmp, 'source', resultant)
        # fix file permissions when the copy is done as a different user
        if self.runner.sudo and self.runner.sudo_user != 'root':
            self.runner._low_level_exec_command(conn, "chmod a+r %s" % xfered, 
                tmp)

        # run the copy module
        module_args = "%s src=%s dest=%s" % (module_args, xfered, dest)
        return self.runner._execute_module(conn, tmp, 'copy', module_args, inject=inject)