public GoFuncType getMethodFuncType() {
			try {
				return method.getType() instanceof GoFuncType funcType ? funcType : null;
			}
			catch (IOException e) {
				return null;
			}
		}
{@link GoMethod} which contains the funcdef of this method

@return {@link GoMethod}
Ghidra/Features/Base/src/main/java/ghidra/app/util/bin/format/golang/rtti/types/GoMethod.java