the method `chain` exists for struct `poloto::build::SinglePlot<std::iter::FilterMap<std::iter::Map<std::ops::Range<{integer}>, [closure@src/bin/main.rs:500:30: 500:99]>, [closure@src/bin/main.rs:504:38: 514:26]>, std::string::String>`, but its trait bounds were not satisfied
only if the trait PlotIteratorExt isn't imported. This should be done in the macro.
It gives this error message:
only if the trait PlotIteratorExt isn't imported. This should be done in the macro.