override theme’s public static operate within a trait?

I take advantage of a theme which has a public static operate to show part of a web page like:

trait SomeTrait {
    public static operate some_function() {
    ?>
        <div class="some_class">Some content material</div>
    <?
    }
}

and the helper file appears to be like like:

class Helper {
    use SomeTrait;
    // ...
}

I must override the operate in my plugin.

Within the plugin I strive the code:

/*
Plugin Identify: MyPlugin
Description: -
Model: 1.0
Writer: -
*/

if ( ! outlined( 'ABSPATH' ) ) exit;

class Further extends Helper {
    trait SomeTrait{
        operate some_function() {
            ?>
            <div>Check</div>
            <?php
        }
    }
}

However I obtain the deadly error: Class ‘Helper’ not present in …

---

UPDATE

If I strive:

operate my_function() {
    class Further extends Helper {
        public static operate some_function() {
            ?>
            <div>Check</div>
            <?php
        }
    }
}

add_action( 'init', 'my_function' ); // with the 'after_theme_setup' the end result is identical

I do not obtain any errors, however my operate does not override the prevailing one