utils::globalVariables(c("input", "wskazniki", "Category", "Euro.Standard", "Pollutant",
"Mode", "na.omit", "Nat", "Alpha", "Procent",
"Beta", "Gamma", "Delta", "Epsilon", "Zita",
"Hta", "Reduction", "Fuel", "Technology", "Segment", "Emisja"))
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