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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 exp(array, ty):
 """ Computes the per-element exponenet of the passed-in array. Args: array (WeldObject / Numpy.ndarray):
 Input array ty (WeldType):
 Type of each element in the input array Returns: A WeldObject representing this computation """

    weld_obj = WeldObject(encoder_, decoder_)

    array_var = weld_obj.update(array)
    if isinstance(array, WeldObject):
        array_var = array.obj_id
        weld_obj.dependencies[array_var] = array

    weld_template = """
       map(
         %(array)s,
         |ele: %(ty)s| exp(ele)
       )
    """
    weld_obj.weld_code = weld_template % {"array": array_var, "ty": ty}
    return weld_obj