TypedOptions doesn not have an attribute of onBegin.

[witwait]

Description

The TypedOptions defined in the file index.d.ts doesn not have an attribute of onBegin. Did you forgot it？

Demo

[If possible, include a demo of your issue in a fork of this JSFiddle: https://jsfiddle.net/mattboldt/1xs3LLmL/]

Steps to Reproduce

1. [First Step]
2. [Second Step]
3. [and so on...]

Expected behavior: [What you expect to happen]

Actual behavior: [What actually happens]

Reproduces how often: [What percentage of the time does it reproduce?]

Additional Information

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