public static void poke(File file, int bufferIndex, DataBuffer buf) throws IOException {
		LocalBufferFile bf = new LocalBufferFile(file, false);
		try {
			bf.put(buf, bufferIndex);
		}
		finally {
			bf.close();
		}
	}
Modify an existing buffer file.
<p>
WARNING! Use with extreme caution since this modifies the original file and could destroy
data if used improperly.

@param file block file
@param bufferIndex the index at which to place the buffer
@param buf the buffer add to the file
@throws IOException if an I/O error occurs
Ghidra/Framework/DB/src/main/java/db/buffers/LocalBufferFile.java