@Override
	public long readSignedIntegerExpectString(AttributeId attribId, String expect, long expectval)
			throws DecoderException {
		findMatchingAttribute(attribId);
		long res = readSignedIntegerExpectString(expect, expectval);
		curPos.copy(startPos);
		return res;
	}
Close stream cached by the ingestStreamAsNeeded method.
@throws IOException for low-level problems with the stream
Ghidra/Framework/SoftwareModeling/src/main/java/ghidra/program/model/pcode/PackedDecode.java