And now, we can use `__init__` to declare the parameters of the instance that we can use to "parameterize" the dependency:

{* ../../docs_src/dependencies/tutorial011_an_py39.py hl[9] *}

In this case, **FastAPI** won't ever touch or care about `__init__`, we will use it directly in our code.

## Create an instance { #create-an-instance }

We could create an instance of this class with:

./mc ready minio1 --insecure
./mc ready minio2 --insecure

# Prepare data for tests
echo -n "Preparing test data ..."
mkdir -p /tmp/data
echo "Hello World" >/tmp/data/obj
touch /tmp/data/mpartobj
shred -s 500M /tmp/data/mpartobj
echo "done"

# Add replication site
./mc admin replicate add minio1 minio2 --insecure
# sleep for replication to complete
sleep 30

T="carousel",w="bs.carousel",C=o.default.fn[T],S="active",N="next",D="prev",A="slid.bs.carousel",I=".active.carousel-item",k={interval:5e3,keyboard:!0,slide:!1,pause:"hover",wrap:!0,touch:!0},O={interval:"(number|boolean)",keyboard:"boolean",slide:"(boolean|string)",pause:"(string|boolean)",wrap:"boolean",touch:"boolean"},j={TOUCH:"touch",PEN:"pen"},P=function(){function t(t,e){this._items=null,this._interval=null,this._activeElement=null,this._isPaused=!1,this._isSliding=!1,this.touchTimeout=null,this.tou...

	}
	return args, tokens
}

// invokeMacro pushes onto the input Stack a Slice that holds the macro definition with the actual
// parameters substituted for the formals.
// Invoking a macro does not touch the PC/line history.
func (in *Input) invokeMacro(macro *Macro) {
	// If the macro has no arguments, just substitute the text.
	if macro.args == nil {
		in.Push(NewSlice(in.Base(), in.Line(), macro.tokens))
		return

        expected.add("maven-it-plugin-log-file");
        expected.add("maven-it-plugin-expression");
        expected.add("maven-it-plugin-fork");
        expected.add("maven-it-plugin-touch");

        List<String> actual = new ArrayList<>();
        @SuppressWarnings("unchecked")
        List<Plugin> plugins = (List<Plugin>) pom.getValue("build/plugins");
        for (Plugin plugin : plugins) {

   *
   * @param file the file to create or update
   * @throws IOException if an I/O error occurs
   */
  @SuppressWarnings("GoodTime") // reading system time without TimeSource
  public static void touch(File file) throws IOException {
    checkNotNull(file);
    if (!file.createNewFile() && !file.setLastModified(System.currentTimeMillis())) {
      throw new IOException("Unable to update modification time of " + file);
    }

   *
   * @param file the file to create or update
   * @throws IOException if an I/O error occurs
   */
  @SuppressWarnings("GoodTime") // reading system time without TimeSource
  public static void touch(File file) throws IOException {
    checkNotNull(file);
    if (!file.createNewFile() && !file.setLastModified(System.currentTimeMillis())) {
      throw new IOException("Unable to update modification time of " + file);
    }

575.98px) {\n  .table-responsive-sm {\n    display: block;\n    width: 100%;\n    overflow-x: auto;\n    -webkit-overflow-scrolling: touch;\n  }\n  .table-responsive-sm > .table-bordered {\n    border: 0;\n  }\n}\n\n@media (max-width: 767.98px) {\n  .table-responsive-md {\n    display: block;\n    width: 100%;\n    overflow-x: auto;\n    -webkit-overflow-scrolling: touch;\n  }\n  .table-responsive-md > .table-bordered {\n    border: 0;\n  }\n}\n\n@media (max-width: 991.98px) {\n  .table-responsive-lg...

 {\n  overflow-x: auto;\n  -webkit-overflow-scrolling: touch;\n}\n\n@media (max-width: 575.98px) {\n  .table-responsive-sm {\n    overflow-x: auto;\n    -webkit-overflow-scrolling: touch;\n  }\n}\n@media (max-width: 767.98px) {\n  .table-responsive-md {\n    overflow-x: auto;\n    -webkit-overflow-scrolling: touch;\n  }\n}\n@media (max-width: 991.98px) {\n  .table-responsive-lg {\n    overflow-x: auto;\n    -webkit-overflow-scrolling: touch;\n  }\n}\n@media (max-width: 1199.98px) {\n  .table-responsive-xl...

 solid #ebebeb;border-top-left-radius:calc(.3rem - 1px);border-top-right-radius:calc(.3rem - 1px)}.popover-header:empty{display:none}.popover-body{padding:.5rem .75rem;color:#212529}.carousel{position:relative}.carousel.pointer-event{-ms-touch-action:pan-y;touch-action:pan-y}.carousel-inner{position:relative;width:100%;overflow:hidden}.carousel-inner::after{display:block;clear:both;content:""}.carousel-item{position:relative;display:none;float:left;width:100%;margin-right:-100%;-webkit-backface-...