Logo centered left and button with icon to the right

Ionic Framework
1

I have a toolbar in my app and i want to place a logo to the left and must be vertically centered and a button to the right vertically centered as well, with an icon and text.

I have this logo that is centered vertically and is also horizontally centered

	  	<ion-header>
  <ion-toolbar >
  
  <ion-grid class="top_header_section">
    <ion-row>
        <ion-col size="4" offset="4">
           <ion-img class="app_logo" :src="require('@/assets/improved_logo.png')"></ion-img>
        </ion-col>
   </ion-row>
</ion-grid>


  </ion-toolbar>
</ion-header>

How can i place the logo left and the button right?