Building From AUR gives warnnings

[YuugataShinonome]

Hello, I build the package from AUR, and it gives following warnnings:

/usr/lib/python3.12/site-packages/cppman/main.py:126: SyntaxWarning: invalid escape sequence '\.'
/usr/lib/python3.12/site-packages/cppman/main.py:396: SyntaxWarning: invalid escape sequence '\s'
/usr/lib/python3.12/site-packages/cppman/main.py:399: SyntaxWarning: invalid escape sequence '\s'
/usr/lib/python3.12/site-packages/cppman/main.py:417: SyntaxWarning: invalid escape sequence '\S'
/usr/lib/python3.12/site-packages/cppman/main.py:430: SyntaxWarning: invalid escape sequence '\S'
/usr/lib/python3.12/site-packages/cppman/main.py:580: SyntaxWarning: invalid escape sequence '\('
/usr/lib/python3.12/site-packages/cppman/main.py:126: SyntaxWarning: invalid escape sequence '\.'
/usr/lib/python3.12/site-packages/cppman/main.py:396: SyntaxWarning: invalid escape sequence '\s'
/usr/lib/python3.12/site-packages/cppman/main.py:399: SyntaxWarning: invalid escape sequence '\s'
/usr/lib/python3.12/site-packages/cppman/main.py:417: SyntaxWarning: invalid escape sequence '\S'
/usr/lib/python3.12/site-packages/cppman/main.py:430: SyntaxWarning: invalid escape sequence '\S'
/usr/lib/python3.12/site-packages/cppman/main.py:580: SyntaxWarning: invalid escape sequence '\('
/usr/lib/python3.12/site-packages/cppman/formatter/cppreference.py:47: SyntaxWarning: invalid escape sequence '\['
/usr/lib/python3.12/site-packages/cppman/formatter/cppreference.py:115: SyntaxWarning: invalid escape sequence '\s'
/usr/lib/python3.12/site-packages/cppman/formatter/cppreference.py:47: SyntaxWarning: invalid escape sequence '\['
/usr/lib/python3.12/site-packages/cppman/formatter/cppreference.py:115: SyntaxWarning: invalid escape sequence '\s'
/usr/lib/python3.12/site-packages/cppman/formatter/tableparser.py:147: SyntaxWarning: invalid escape sequence '\^'
/usr/lib/python3.12/site-packages/cppman/formatter/tableparser.py:147: SyntaxWarning: invalid escape sequence '\^'

Apart from this it works fine.