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: boost.rs
    path of file: ./repos/veloren/common/src/states
    
    the code of the file until where you have to start completion: use crate::{
    comp::{character_state::OutputEvents, CharacterState, StateUpdate},
    states::{
        behavior::{CharacterBehavior, JoinData},
        utils::*,
    },
};
use serde::{Deserialize, Serialize};
use std::time::Duration;

/// Separated out to condense update portions of character state
#[de
    
    fn behavior(&self, data: &JoinData, output_events: &mut OutputEvents) -> StateUpdate {
        let mut update = StateUpdate::from(data);

        handle_move(data, &mut update, 1.0);
        handle_orientation(data, &mut update, 10.0, None);

        if self.timer < self.static_data.movement_duration {
            // Movement
            if self.static_data.only_up {
                update.vel.0.z += self.static_data.speed * data.dt.0;
            } else {
                update.vel.0 += *data.inputs.look_dir * self.static_data.speed * data.dt.0;
                let dir = Some(update.vel.to_dir());
                handle_orientation(data, &mut update, 10.0, dir);
            }
            update.character = CharacterState::Boost(Data {
                timer: tick_attack_or_default(data, self.timer, None),
                ..*self
            });
        } else {
            // Done
            if input_is_pressed(data, self.static_data.ability_info.input) {
                reset_state(self, data, output_events, &mut update);
            } else {
                update.vel.0 = update.vel.0.try_normalized().unwrap_or_default()
                    * update
                        .vel
                        .0
                        .magnitude()
                        .min(self.static_data.max_exit_velocity);
                end_ability(data, &mut update);
            }
        }

        update
    }