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: utils_shared.rs
    path of file: ./repos/deep_causality/deep_causality/benches/benchmarks
    
    the code of the file until where you have to start completion: // SPDX-License-Identifier: MIT
// Copyright (c) "2023" . The DeepCausality Authors. All Rights Reserved.

use deep_causality::errors::CausalityError;
use deep_causality::prelude::{BaseCausaloid, Causaloid, IdentificationValue, Numeri
    
pub fn get_test_causaloid<'l>() -> BaseCausaloid<'l> {
    let id: IdentificationValue = 1;
    let description = "tests whether data exceeds threshold of 0.55";
    fn causal_fn(obs: NumericalValue) -> Result<bool, CausalityError> {
        if obs.is_sign_negative() {
            return Err(CausalityError("Observation is negative".into()));
        }

        let threshold: NumericalValue = 0.55;
        if !obs.ge(&threshold) {
            Ok(false)
        } else {
            Ok(true)
        }
    }

    Causaloid::new(id, causal_fn, description)
}