public boolean getBool(DWARFAttribute attribute, boolean defaultValue) {
		DWARFBooleanAttribute val = getAttribute(attribute, DWARFBooleanAttribute.class);
		return (val != null) ? val.getValue() : defaultValue;
	}
Returns the boolean value of the requested attribute, or -defaultValue- if
the attribute is missing or not the correct type.

@param attribute {@link DWARFAttribute} id
@param defaultValue value to return if attribute is not present
@return boolean value, or the defaultValue if attribute is not present
Ghidra/Features/Base/src/main/java/ghidra/app/util/bin/format/dwarf/DIEAggregate.java