not necesary it it 0

[github-actions[bot]]

not necesary it it 0

https://github.com/apache/incubator-wayang/blob/4cc0bfdca06dda171b661822daae5fa438d9d475/python/src/pywy/core/translator.py#L49

#
#  Licensed to the Apache Software Foundation (ASF) under one or more
#  contributor license agreements.  See the NOTICE file distributed with
#  this work for additional information regarding copyright ownership.
#  The ASF licenses this file to You under the Apache License, Version 2.0
#  (the "License"); you may not use this file except in compliance with
#  the License.  You may obtain a copy of the License at
#
#      http://www.apache.org/licenses/LICENSE-2.0
#
#  Unless required by applicable law or agreed to in writing, software
#  distributed under the License is distributed on an "AS IS" BASIS,
#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
#  See the License for the specific language governing permissions and
#  limitations under the License.
#

from pywy.graph.types import (WGraphOfVec, NodeVec)
from pywy.core.plugin import Plugin
from pywy.core.plan import PywyPlan
from pywy.core.mapping import Mapping


class Translator:

    plugin: Plugin
    plan: PywyPlan

    def __init__(self, plugin: Plugin, plan: PywyPlan):
        self.plugin = plugin
        self.plan = plan

    def translate(self):
        mappings: Mapping = self.plugin.get_mappings()
        graph = WGraphOfVec(self.plan.sinks)

        def translate2plugin(current_op: NodeVec, next_op: NodeVec):
            if current_op is None:
                return

            if current_op.current[1] is None:
                current_op.current[1] = mappings.get_instanceof(current_op.current[0])

            if next_op is None:
                return
            if next_op.current[1] is None:
                next_op.current[1] = mappings.get_instanceof(next_op.current[0])

            # TODO not necesary it it 0
            current_op.current[1].connect(0, next_op.current[1], 0)

        graph.traversal(graph.starting_nodes, translate2plugin)

        node = []
        for elem in graph.starting_nodes:
            node.append(elem.current[1])

        return PywyPlan({self.plugin}, node)

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