gremlin-core/src/main/java/org/apache/tinkerpop/gremlin/structure/io/graphson/TraversalSerializersV3.java [377:403]:
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        public Lambda deserialize(final JsonParser jsonParser, final DeserializationContext deserializationContext) throws IOException, JsonProcessingException {
            String script = null;
            String language = null;
            int arguments = -1;

            while (jsonParser.nextToken() != JsonToken.END_OBJECT) {
                if (jsonParser.getCurrentName().equals(GraphSONTokens.SCRIPT)) {
                    jsonParser.nextToken();
                    script = jsonParser.getText();
                } else if (jsonParser.getCurrentName().equals(GraphSONTokens.LANGUAGE)) {
                    jsonParser.nextToken();
                    language = jsonParser.getText();
                } else if (jsonParser.getCurrentName().equals(GraphSONTokens.ARGUMENTS)) {
                    jsonParser.nextToken();
                    arguments = jsonParser.getIntValue();
                }
            }

            if (-1 == arguments || arguments > 2)
                return new Lambda.UnknownArgLambda(script, language, arguments);
            else if (0 == arguments)
                return new Lambda.ZeroArgLambda<>(script, language);
            else if (1 == arguments)
                return new Lambda.OneArgLambda<>(script, language);
            else
                return new Lambda.TwoArgLambda<>(script, language);
        }
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gremlin-core/src/main/java/org/apache/tinkerpop/gremlin/structure/io/graphson/TraversalSerializersV2.java [314:340]:
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        public Lambda deserialize(final JsonParser jsonParser, final DeserializationContext deserializationContext) throws IOException, JsonProcessingException {
            String script = null;
            String language = null;
            int arguments = -1;

            while (jsonParser.nextToken() != JsonToken.END_OBJECT) {
                if (jsonParser.getCurrentName().equals(GraphSONTokens.SCRIPT)) {
                    jsonParser.nextToken();
                    script = jsonParser.getText();
                } else if (jsonParser.getCurrentName().equals(GraphSONTokens.LANGUAGE)) {
                    jsonParser.nextToken();
                    language = jsonParser.getText();
                } else if (jsonParser.getCurrentName().equals(GraphSONTokens.ARGUMENTS)) {
                    jsonParser.nextToken();
                    arguments = jsonParser.getIntValue();
                }
            }

            if (-1 == arguments || arguments > 2)
                return new Lambda.UnknownArgLambda(script, language, arguments);
            else if (0 == arguments)
                return new Lambda.ZeroArgLambda<>(script, language);
            else if (1 == arguments)
                return new Lambda.OneArgLambda<>(script, language);
            else
                return new Lambda.TwoArgLambda<>(script, language);
        }
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