@Override
	public boolean isEquivalent(DataType dt) {
		if (dt == this) {
			return true;
		}
		if (!(dt instanceof FunctionDefinition)) {
			return false;
		}
		return isEquivalentSignature((FunctionDefinition) dt);
	}
Compare the comment of the given function signature to my comment.

@param sig signature to compare the comment

@return true if the comments match
Ghidra/Framework/SoftwareModeling/src/main/java/ghidra/program/model/data/FunctionDefinitionDataType.java