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: type_none_comparison.rs
    path of file: ./repos/ruff/crates/ruff_linter/src/rules/refurb/rules
    
    the code of the file until where you have to start completion: use ruff_diagnostics::{Diagnostic, Edit, Fix, FixAvailability, Violation};
use ruff_macros::{derive_message_formats, violation};
use ruff_python_ast::{self as ast, CmpOp, Expr};
use ruff_python_semantic::SemanticModel;
use ruff_text_size::Ranged;

use crate::checkers::ast::Checker;
use crate::fix::edits::pad;
use crate::rules::refurb::helpers::generate_none_identity_comparison;

/// ## What it does
/// Checks for uses of `type` that compare the type of an object to the type of
/// `None`.
///
/// ## Why is this bad?
/// There is only ever one instance of `None`, so it is more efficient and
/// readable to use the `is` operator to check if an object is `None`.
///
/// ## Example
/// ```python
/// type(obj) is type(None)
/// ```
///
/// Use instead:
/// ```python
/// obj is None
/// ```
///
/// ## References
/// - [Python documentation: `isinstance`](https://docs.python.org/3/library/functions.html#isinstance)
/// - [Python documentation: `None`](https://docs.python.org/3/library/co
    
pub(crate) fn type_none_comparison(checker: &mut Checker, compare: &ast::ExprCompare) {
    let ([op], [right]) = (&*compare.ops, &*compare.comparators) else {
        return;
    };

    // Ensure that the comparison is an identity or equality test.
    let comparison = match op {
        CmpOp::Is => Comparison::Is,
        CmpOp::IsNot => Comparison::IsNot,
        CmpOp::Eq => Comparison::Eq,
        CmpOp::NotEq => Comparison::NotEq,
        _ => return,
    };

    // Get the objects whose types are being compared.
    let Some(left_arg) = type_call_arg(&compare.left, checker.semantic()) else {
        return;
    };
    let Some(right_arg) = type_call_arg(right, checker.semantic()) else {
        return;
    };

    // If one of the objects is `None`, get the other object; else, return.
    let other_arg = match (
        left_arg.is_none_literal_expr(),
        right_arg.is_none_literal_expr(),
    ) {
        (true, false) => right_arg,
        (false, true) => left_arg,
        // If both are `None`, just pick one.
        (true, true) => left_arg,
        _ => return,
    };

    // Get the name of the other object (or `None` if both were `None`).
    let other_arg_name = match other_arg {
        Expr::Name(ast::ExprName { id, .. }) => id.as_str(),
        Expr::NoneLiteral { .. } => "None",
        _ => return,
    };

    let mut diagnostic = Diagnostic::new(
        TypeNoneComparison {
            object: other_arg_name.to_string(),
            comparison,
        },
        compare.range(),
    );
    diagnostic.set_fix(Fix::safe_edit(Edit::range_replacement(
        pad(
            match comparison {
                Comparison::Is | Comparison::Eq => {
                    generate_none_identity_comparison(other_arg_name, false, checker.generator())
                }
                Comparison::IsNot | Comparison::NotEq => {
                    generate_none_identity_comparison(other_arg_name, true, checker.generator())
                }
            },
            compare.range(),
            checker.locator(),
        ),
        compare.range(),
    )));
    checker.diagnostics.push(diagnostic);
}