magento2 – Magento 2 how to get DataRange filter value?

I have added a DataRange filter like this on a listing ui component:

<column name="fecha_order" sortOrder="20">
            <settings>
                 <filter>dateRange</filter>
                <label translate="true">Fecha</label>
            </settings>
 </column>

Then I get the values here in a custom Data Provider

  public function addFilter(MagentoFrameworkApiFilter $filter)
    {
        $writer = new LaminasLogWriterStream(BP . '/var/log/filters.log');
        $logger = new LaminasLogLogger();
        $logger->addWriter($writer);

        $this->_session->start();
        $this->_session->setFrom($filter->getValue());
        $logger->info($filter->getValue());
        $logger->info($filter->getField());
    }

The only problem is that I’m getting both values like 1 single variable.
I get for example:
2021-09-01 05:00:00
2021-09-15 04:59:59

So the method is like executing 2 times.

But I need to get both in a single time because I’m storing it on a Session Variable.
I need to create a variable session From and a variable session To
How can I achieve that?
Thanks and greetings!

plotting – ScalingFunctions and DataRange in ListDensityPlot[]

I wanted to plot 100×100 two-dimensional array with certain units for x-y axis. In addition, I want to invert y-axis. I can do each of them separately. For example,

l = Table(x - y, {x, 1, 100}, {y, 1, 100});
ListDensityPlot(l, DataRange -> {{0, 1}, {0, 5}})

shows the plot with different x-y scale.

enter image description here

and I can get plot with inverted y-axis by

ListDensityPlot(l, ScalingFunctions -> {Identity, "Reverse"})

.
enter image description here
However, if I tried to do both,

ListDensityPlot(l, ScalingFunctions -> {Identity, "Reverse"}, 
 DataRange -> {{0, 1}, {0, 5}})

the resulting plot is almost blank (I saw a small region of plot at the top).

enter image description here

Is there any way to circumvent this problem?

Thank you very much in advance.

Takashi.

plotting – How can I use a logarithmic ScalingFunctions with ListContourPlot and DataRange? (i.e. no x- and y- inputs given)

There appears to be a bug in plotting, using ListContourPlot with ScalingFunctions->{“Log”,”Log”} and specifying a DataRange, when trying to plot only a 2d array (i.e. with the x- and y- variables specified using DataRange instead of being input).
Providing a 2d DataRange gives a blank plot, with PlotRange having no effect. If I include “All” as a 3rd dimension to DataRange, then the plot draws axes as Exp(DataRange).

Could somebody help me around this apparent bug?