Added insert and remove to declaration file

holiber / sl-vue-tree

Customizable draggable tree component for Vue.js

https://holiber.github.io/sl-vue-tree/

MIT License

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Open p0wl90 opened 4 years ago

p0wl90 commented 4 years ago

Added the insert and remove methods to the ts declaration file since they were missing. (Related to #39)