public static FieldInfo of(String name, TypeSignature typeSignature) {
        return new FieldInfo(name, FieldLocation.UNSPECIFIED, FieldRequirement.UNSPECIFIED, typeSignature,
                             DescriptionInfo.empty());
    }
Creates a new {@link FieldInfo} with the specified {@code name} and {@link TypeSignature}.
The {@link FieldLocation} and {@link FieldRequirement} of the {@link FieldInfo} will be
{@code UNSPECIFIED}.
core/src/main/java/com/linecorp/armeria/server/docs/FieldInfo.java