public double getSignificanceThreshold() {
		return queryNearest.signifthresh;
	}
Gets the threshold under which a potential similar function will not be matched.  This
threshold is for how significant the match is (for example, smaller function matches
are less significant).  Higher is more significant.  There is no upper bound. The 
default value is {@value QueryNearest#DEFAULT_SIGNIFICANCE_THRESHOLD}.

@return threshold under which a potential similar function will not be matched.
Ghidra/Features/BSim/src/main/java/ghidra/features/bsim/query/facade/SFQueryInfo.java