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google apps script - insert image at specific point of paragraph

*I have a Google Document with a string like "text {logo} text" How do place an image where {logo} is? So far I tried:

var logoElement = s.findText("{logo}").getElement();
logoElement.getParent().insertInlineImage(0,logoBlob);
s.replaceText("{logo}", "");

But this inserts the image before the found paragraph (or with 1: after). How do I place it inside the paragraph at the exact location?

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I hope will be helpful, The following code is fine to me.

function insertImage(doc) {
  // Retrieve an image from the web.
  var resp = UrlFetchApp.fetch("http://www.google.com/intl/en_com/images/srpr/logo2w.png");
  var image = resp.getBlob();
  var body = doc.getBody();
  var oImg = body.findText("<<Logo1>>").getElement().getParent().asParagraph();
  oImg.clear();
  oImg = oImg.appendInlineImage(image);
  oImg.setWidth(100);
  oImg.setHeight(100);
}

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