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postsRef.push().set({ author: "alanisawesome", title: "The Turing Machine" });

{
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    "-JRHTHaIs-jNPLXOQivY": {
      "author": "gracehop",
      "title": "Announcing COBOL, a New Programming Language"
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    "-JRHTHaKuITFIhnj02kE": {
      "author": "alanisawesome",
      "title": "The Turing Machine"
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  }
}