It's possible hide a button with context data information. I need hide the button where the context Boolean field is False

So far i have

ctx ={'some_boolean': True,}

<button name="select_partner" type="object" string="Select" class="oe_highlight" invisible="context.get('some_boolean',False)"/>

but that hide the button in the wrong place

I need something like 

<button name="select_partner" type="object" string="Select" class="oe_highlight" attrs="{'invisible':[(context.get('some_boolean'),'!=',True)]}"/>

the second code return an error on the view.

Any sugestion