<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def et(name, parallel, inputs, outputs, expression):
 """Represent an ExpressionTool that reorders inputs using javascript. """

    ExpressionTool = collections.namedtuple("ExpressionTool", "name inputs outputs expression parallel")
    return ExpressionTool(name, inputs, outputs, expression, parallel)