protected void buildDeclarationReturnType(@Nonnull StringBuilder sb) {
		Type methodType = Type.getMethodType(method.getDescriptor());
		String returnTypeName = format.filterEscape(methodType.getReturnType().getClassName());
		if (returnTypeName.contains("."))
			returnTypeName = returnTypeName.substring(returnTypeName.lastIndexOf(".") + 1);
		sb.append(returnTypeName).append(' ');
	}
Appends the following pattern to the builder:
<pre>
ReturnType
</pre>

@param sb
		Builder to add to.
recaf-core/src/main/java/software/coley/recaf/services/decompile/fallback/print/MethodPrinter.java