How to use the @loopback/metadata.MetadataInspector.getDesignTypeForMethod function in @loopback/metadata

export function inspectTargetType(injection: Readonly) {
  let type = MetadataInspector.getDesignTypeForProperty(
    injection.target,
    injection.member!,
  );
  if (type) {
    return type;
  }
  const designType = MetadataInspector.getDesignTypeForMethod(
    injection.target,
    injection.member!,
  );
  type =
    designType.parameterTypes[
      injection.methodDescriptorOrParameterIndex as number
    ];
  return type;
}