Merge pull request #102 from Merck/update-example-rtf_static_forestly

Update the example in `rtf_static_forestly()`

Merge pull request #68 from Merck/61-can-users-custom-the-label-of-th…

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add argument to customize filter label

Merge pull request #57 from Merck/56-release-v011

update arguments

revise examples to make run time lower