Rails Ransack gem slider - ruby-on-rails

Question

I want to be able to performa range search with ransack. I was hoping I could do this with a slider that has two thumbs. I'm thinking that the _in predicate would be perfect for a situation like this. However, I cannot find an example on how to appropriately configure this. Here would be some example code:
CONTROLLER `users_controller.rb:
def index
#page_title = 'Users'
#page_icon = 'store'
#q = User.search(params[:search]).ransack(params[:q])
#retailers = #q.result.order("#{sort_column} #{sort_direction}").paginate(page: params[:page], per_page: 20)
end
VIEW users/index.html.erb:
<%= search_form_for #q, url: users_path, class: 'form' do |f| %>
<div class="row">
<div class="col-sm-3">
<div class="form-group">
<%= label_tag :search %>
<%= text_field_tag :search, params[:search], class: "form-control" %>
</div>
</div>
<div class="col-sm-3">
<div class="form-group">
<%= f.label :first_name_eq, "First Name" %>
<%= f.select :first_name_eq, {include_blank: true}, {class: "chosen-select"} %>
</div>
</div>
<div class="col-sm-3">
<div class="form-group">
<%= f.label :team_eq, "Team" %>
<%= f.select :team_eq, Team.options_for_select, {include_blank: true}, {class: "chosen-select"} %>
</div>
</div>
</div>
<div class="row">
<div class="col-sm-3">
<div class="form-group">
<%= f.label :score_in, "Score Range" %>
<%= f.search_field :score_in, {include_blank: true} %>
</div>
</div>
</div>
<div>
<%= f.submit 'Apply Filters', class: 'btn btn-outline-dark btn-md' %>
<%= link_to 'Reset Filters', users_path(q: {reset: true}), class: 'btn btn-outline-danger btn-md' %>
</div>
<% end %>
I guess where I'm lost is how to start or implement a slider w/ two thumbs that would appropriately pass the parameters when submitted. Or even if I just create a two thumbed slider from a js library, how to connect it then to ransack, or at least pass the values of the two thumbs to ransacks params. Another thing that might be helpful is if someone has an example, both in controller/view, of what the _in predicate should look like.