private JitTypeBehavior getReturnType() {
			Method method = decOp.getJavaMethod();
			if (method == null) {
				return JitTypeBehavior.ANY;
			}
			return JitTypeBehavior.forJavaType(method.getReturnType());
		}
Get the type behavior from the userop's Java method

<p>
If the userop is not backed by a Java method, or its return type is not supported, this
return {@link JitTypeBehavior#ANY}.

@return the type behavior
Ghidra/Framework/Emulation/src/main/java/ghidra/pcode/emu/jit/analysis/JitDataFlowUseropLibrary.java