MultiTrigger XAML Style in Xamarin Forms

I recently needed to trigger a style in Xamarin Forms based on multiple conditions. Thankfully Xamarin Forms has provided "MultiTrigger" to accomplish this, but I struggled to find many examples of what I needed.

For reference, here is Xamarin's documentation on MultiTrigger:
https://developer.xamarin.com/guides/xamarin-forms/working-with/triggers/#Multi_Triggers

Given the View Model "MyVM" with properties "ConditionA" and "ConditionB", the following example can be used to create a style that reacts differently depending on combinations of these conditions:

<ContentPage.Resources>  
  <ResourceDictionary>
    <Style x:Key="MyButtonStyle" TargetType="Button">
      <Style.Triggers>

        <MultiTrigger TargetType="Button">
          <MultiTrigger.Conditions>
            <BindingCondition Binding="{Binding Path=MyVM.ConditionA}"
                              Value="True" />
            <BindingCondition Binding="{Binding Path=MyVM.ConditionB}"
                              Value="False" />
          </MultiTrigger.Conditions>
          <Setter Property="Text" Value="Hello" />
          <Setter Property="BackgroundColor" Value="Green"/>
        </MultiTrigger>

        <MultiTrigger TargetType="Button">
          <MultiTrigger.Conditions>
            <BindingCondition Binding="{Binding Path=MyVM.ConditionA}"
                              Value="True" />
            <BindingCondition Binding="{Binding Path=MyVM.ConditionB}"
                              Value="True" />
          </MultiTrigger.Conditions>
          <Setter Property="Text" Value="Goodbye" />
          <Setter Property="BackgroundColor" Value="Red"/>
        </MultiTrigger>

        <MultiTrigger TargetType="Button">
          <MultiTrigger.Conditions>
            <BindingCondition Binding="{Binding Path=MyVM.ConditionA}"
                              Value="False" />
          </MultiTrigger.Conditions>
          <Setter Property="Text" Value="Not Available" />
          <Setter Property="BackgroundColor" Value="Gray"/>
        </MultiTrigger>

      </Style.Triggers>
    </Style>
  </ResourceDictionary>
</ContentPage.Resources>