I suggest Element be like this:

export interface ElementTag {
  type: 'element';
  name:string;
  ...
}

export interface ElementText {
  type: 'text';
  text: string;
}

...

export type Element =
  | ElementTag
  | ElementText
  ...
  ;

This is one of the best practice to define AST in TypeScript, and it actually match your design 100% perfectly. Plea

bioconvert/bioconvert#210 (comment)

can the anaconda3 installation documentation be modified to reflect the above comment?

conda config --add channels r
conda config --add channels defaults
conda config --add channels conda-forge
conda config --add channels bioconda

conda update -n base -c defaults conda -y
conda update --all -y
# python 3.