Picker callback the editor's "+" toolbar button invokes. Consumers implement this with their own picker UI (the SDK never owns one). Resolve one pick, an array to insert several files at once (in order), or null when the user cancels.
null
Optional
Picker callback the editor's "+" toolbar button invokes. Consumers implement this with their own picker UI (the SDK never owns one). Resolve one pick, an array to insert several files at once (in order), or
nullwhen the user cancels.