You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: lib.rs
    path of file: ./repos/nih-plug/plugins/puberty_simulator/src
    
    the code of the file until where you have to start completion: // Puberty Simulator: the next generation in voice change simulation technology
// Copyright (C) 2022-2024 Robbert van der Helm
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied war
    
    fn default() -> Self {
        let power_of_two_val2str = formatters::v2s_i32_power_of_two();
        let power_of_two_str2val = formatters::s2v_i32_power_of_two();

        Self {
            pitch_octaves: FloatParam::new(
                "Pitch",
                -1.0,
                FloatRange::SymmetricalSkewed {
                    min: -5.0,
                    max: 5.0,
                    factor: FloatRange::skew_factor(-2.0),
                    center: 0.0,
                },
            )
            // This doesn't need smoothing to prevent zippers because we're already going
            // overlap-add, but sounds kind of slick
            .with_smoother(SmoothingStyle::Linear(100.0))
            .with_unit(" Octaves")
            .with_value_to_string(formatters::v2s_f32_rounded(2)),

            window_size_order: IntParam::new(
                "Window Size",
                DEFAULT_WINDOW_ORDER as i32,
                IntRange::Linear {
                    min: MIN_WINDOW_ORDER as i32,
                    max: MAX_WINDOW_ORDER as i32,
                },
            )
            .with_value_to_string(power_of_two_val2str.clone())
            .with_string_to_value(power_of_two_str2val.clone()),
            overlap_times_order: IntParam::new(
                "Window Overlap",
                DEFAULT_OVERLAP_ORDER as i32,
                IntRange::Linear {
                    min: MIN_OVERLAP_ORDER as i32,
                    max: MAX_OVERLAP_ORDER as i32,
                },
            )
            .with_value_to_string(power_of_two_val2str)
            .with_string_to_value(power_of_two_str2val),
            mode: EnumParam::new("Mode", PitchShiftingMode::InterpolateRectangular),
        }
    }