src/language-js/embed.js/isStyledJsx
function isStyledJsx(path) {
  const node = path.getValue();
  const parent = path.getParentNode();
  const parentParent = path.getParentNode(1);
  return (
    parentParent &&
    node.quasis &&
    parent.type === "JSXExpressionContainer" &&
    parentParent.type === "JSXElement" &&
    parentParent.openingElement.name.name === "style" &&
    parentParent.openingElement.attributes.some(
      attribute => attribute.name.name === "jsx"
    )
  );
}