# No need to keep empty groups even if `keep_named_groups` is enabled.
keep_named_groups = true
input = '''
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1 1">
<g id="some_group"/>
<rect width="10" height="10"/>
</svg>
'''
output = '''
<svg
xmlns="http://www.w3.org/2000/svg"
width="1"
height="1"
viewBox="0 0 1 1"
preserveAspectRatio="xMidYMid"
xmlns:usvg="https://github.com/RazrFalcon/usvg"
usvg:version="0.4.0">
<defs/>
<path
fill="#000000"
fill-opacity="1"
fill-rule="nonzero"
stroke="none"
visibility="visible"
d="M 0 0 L 10 0 L 10 10 L 0 10 Z"/>
</svg>
'''