[v4-beta.6] slide.isEnd - Type ConstrainBooleanParameters is not assignable and misc function declaration

[peterpeterparker]

Ionic Info
Ionic/Angular v4-beta.6

Describe the Bug
I would report two problems related to slide.isEnd()

1. When I try to get the result as boolean I get the following compilation error

     const end: boolean = await this.slides.isEnd();
   

[ng] ERROR in src/app/something/something.ts(84,9): error TS2322: Type 'boolean | ConstrainBooleanParameters' is not assignable to type 'boolean'.
[ng] Type 'ConstrainBooleanParameters' is not assignable to type 'boolean'.
[ng] ℹ ｢wdm｣: Failed to compile.

2. Then I add a look to component.d.ts and noticed that isBeginning isn't declared as isEnd, I guess I should report it

    /**
    * Get whether or not the current slide is the first slide.
    */
    'isBeginning': () => Promise<boolean>;
    /**
    * Get whether or not the current slide is the last slide.
    */
    'isEnd': () => Promise<ConstrainBoolean>;
   

Related Code
See above

Expected Behavior
The ability to get the value

Workaround

const index: number = await this.slides.getActiveIndex();
const length: number = await this.slides.length();
const end: boolean = index === (length - 1);

[peterpeterparker]

All good in v4.0.0-beta.7, thx

[ionitron-bot]

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