About the configuatio of katex

It seems that katex not support equation environment, and the solution given here not work for markdown-preview when I set it as:

let g:mkdp_preview_options = {
			\ 'katex': {
			\ delimiters: [
			\ {left: "$$", right: "$$", display: true},
			\ {left: "\\(", right: "\\)", display: false},
			\ {left: "\\[", right: "\\]", display: true},
			\ {left: "\\begin{equation}", right: "\\end{equation}", display: true}
			\ ]
 }

I guess the only option support is given in the doc of katex: https://katex.org/docs/options.html. But did there any way to use the delimiters as an option?