Structural Directive Multiple Inputs - Angular

myDir.directive.ts

import { Directive, Input, TemplateRef, ViewContainerRef } from '@angular/core';

@Directive({ selector: '[myDir]'})
export class MyDirective {

@Input() set myDir(text: string) {
    console.log("text:", text); 
}

@Input() set myDirGreet(greet: string) {
    console.log(greet);  
}
    
constructor(
  private templateRef: TemplateRef<any>,
  private viewContainer: ViewContainerRef) { ... }


 ....// ommitted for clarity
    
}

someComponent.component.html

<!-- pass single input value -->
<div *myDir="'hi!'"></div>

<!-- pass multiple input values -->

<div *myDir="'hi!';greet:'good morning'"></div>

What syntax should be if we want to assign greet in the template with some component variable value like
<div *myDir="'hi!';greet: **someVar** "></div>