How to use the react-docgen-typescript.parse function in react-docgen-typescript

const parseTypescript = path => ensurePropsKey(typescriptParser.parse(path)[0] || {}); // react-docgen-typescript returns array, so

export const mapReactDocgenTypeScript: T.AnalysisMapper = async (
	path: string,
	ctx: T.AnalysisMapperContext
): Promise => {
	try {
		const info = reactDocgenTypescript.parse(path);
		if (info.length > 0) {
			ctx.analysis.attach(path, { type: label, payload: info });
		}
		// tslint:disable-next-line:no-empty
	} catch (err) {}
};

function getDocgen(config, filePath) {
  if (filePath.match(/\.tsx$/))
    return require('react-docgen-typescript').parse(filePath);

  let content = fs.readFileSync(filePath).toString()
  if (!config.noSpecialReplacements) {
    content = content
      .replace('_interopRequireDefault(_react)', 'require("react")')
      .replace(/import Component from ["']react-pure-render\/component["']/, 'import {Component} from "react"')
      .replace(/export default .*\((\w*)\)+/m, 'export default $1')
  }
  return docgenParse(content);
}