Zoom and scroll (pyqt5 -python)

[quant]

In "matplotlib" to install the viewing range of the x-axis used the function "set_xlim"
That is, after installing "step" by means of "Slider" I used the following code:

def update(evt=None):
    r = scroll.value() / ((1 + step) * 100)
    l1 = lims[0] + r * np.diff(lims)#lims - is the first and last value on the x axis(two values)
    l2 = l1 + np.diff(lims) * step
    ax.set_xlim(l1, l2)

def update(evt=None):
    r = scroll.value() / ((1 + step) * 100)
    l1 = lims[0] + r * np.diff(lims)#lims - is the first and last value on the x axis(two values)
    l2 = l1 + np.diff(lims) * step
    ax.set_xlim(l1, l2)

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So I was able to set the scale and scroll the chart.
Is there any Qt function is similar to "set_xlim"?