{* ../../docs_src/dependencies/tutorial001_02_an_py310.py hl[12,16,21] *}

/// tip

This is just standard Python, it's called a "type alias", it's actually not specific to **FastAPI**.

But because **FastAPI** is based on the Python standards, including `Annotated`, you can use this trick in your code. 😎

///

For example, it was clear that ideally it should be based on standard Python type hints.

Also, the best approach was to use already existing standards.

                this.future.cancel(true);
            }
            this.executor.awaitTermination(1, TimeUnit.SECONDS);
        }
        if ( this.base != null ) {
            this.base.delete();
        }
        super.tearDown();
    }


    private void setupWatch ( SmbWatchHandle w ) throws InterruptedException {
        if ( this.future != null ) {
            this.future.cancel(true);
        }

	PassHost     bool
	Logger       func(error)
	ErrorHandler func(http.ResponseWriter, *http.Request, error)

	// internal variables
	rewriter *headerRewriter
}

// NewForwarder creates an instance of Forwarder based on the provided list of configuration options
func NewForwarder(f *Forwarder) *Forwarder {
	f.rewriter = &headerRewriter{}
	if f.RoundTripper == nil {
		f.RoundTripper = http.DefaultTransport
	}

	return f
}

## Conclusion

	// Signature is valid, lets validate the claims for
	// other fields such as expiry etc.
	return claims.Valid()
}

// base64DecodeBytes returns the bytes represented by the base64 string s.
func base64DecodeBytes(b []byte, buf []byte) (int, error) {
	return base64.RawURLEncoding.Decode(buf, b)
}

// ParseUnverifiedMapClaims - WARNING: Don't use this method unless you know what you're doing
//

	// Reorder online disks based on erasure distribution order.
	// Reorder parts metadata based on erasure distribution order.
	onlineDisks, metaArr = shuffleDisksAndPartsMetadataByIndex(onlineDisks, metaArr, fi)

	// For negative length read everything.
	if length < 0 {

	MOVM.IB	[R0-R4], (F1)      // ERROR "illegal base register"
	MOVM.DB	[R0-R4], (F1)      // ERROR "illegal base register"
	MOVW	R0<<0(F1), R1      // ERROR "illegal base register"
	MOVB	R0<<0(F1), R1      // ERROR "illegal base register"
	MOVW	R1, R0<<0(F1)      // ERROR "illegal base register"
	MOVB	R2, R0<<0(F1)      // ERROR "illegal base register"
	MOVF	0x00ffffff(F2), F1 // ERROR "illegal base register"

import static com.google.common.base.Preconditions.checkArgument;
import static com.google.common.base.Preconditions.checkNotNull;
import static com.google.common.base.Preconditions.checkState;
import static java.util.concurrent.TimeUnit.NANOSECONDS;

import com.google.common.annotations.GwtCompatible;
import com.google.common.annotations.GwtIncompatible;
import com.google.common.base.Ascii;
import com.google.common.base.Equivalence;

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