compile Hlsl To Spv

How do we compile hlsl to spirv, using shaderc APIs, with the C API, and also with the C++ API?

For C API, are we supposed to first call:
shaderc_compile_options_set_source_language
and then call shaderc_compile_into_spv?

Maybe the documentation should be updated:
Takes a GLSL source string -> Takes a GLSL/HLSL source string

For C++ API, there's already an API: "CompileGlslToSpv"
Should there be another API added, like "CompileHlslToSpv"?