Toml doesn't allow Windows path

[parkavi11]

When I give a Windows path like "D:\Parkavi\Test\TomlTestProject" in the toml, it does not work, instead I have to give path within single quotes. Even when I try to give with escaping characters within double quotes, it does not work. I created an issue in the toml language spec and please find the below link where I created the issue earlier.
toml-lang/toml#716

When I give path as below:

dependencies]
"parkavi2/test1" = {path = "..\\TestProject\\target\\balo\\test1-2020r1-any-0.1.0.balo"}

I get an output as

TestProject/       argealo/        est1-2020r1-any-0.1.0.balo