fnmain() ->Result<_>{// Chart setup ...letmut chart =ChartBuilder::on(&top).x_label_area_size(20).y_label_area_size(40).build_cartesian_2d((0f32..10f32).with_key_points((0f32..10f32).step(0.5).values().map(|x| x*PI).collect()),0f32..2.5f32).unwrap();        chart.configure_mesh().x_labels(5).y_labels(2).draw()?;// Draw stuff ...}

error[E0599]: the method `configure_mesh` exists for struct `ChartContext<'_, BitMapBackend<'_>, Cartesian2d<WithKeyPoints<RangedCoordf32>, RangedCoordf32>>`, but its trait bounds were not satisfied  --> src/bin/plotting.rs:30:11   |30 |     chart.configure_mesh()   |           ^^^^^^^^^^^^^^ method cannot be called due to unsatisfied trait bounds   |  ::: $HOME/.cargo/registry/src/index.crates.io-6f17d22bba15001f/plotters-0.3.7/src/coord/ranged1d/combinators/ckps.rs:16:1   |16 | pub struct WithKeyPoints<Inner: Ranged> {   | --------------------------------------- doesn't satisfy `<_ as Ranged>::FormatOption = DefaultFormatting` or `WithKeyPoints<RangedCoordf32>: ValueFormatter<f32>`   |   = note: the following trait bounds were not satisfied:           `<WithKeyPoints<RangedCoordf32> as plotters::prelude::Ranged>::FormatOption = DefaultFormatting`           which is required by `WithKeyPoints<RangedCoordf32>: ValueFormatter<f32>`