//// tab | Python 3.8+

```Python hl_lines="9"
{!> ../../docs_src/query_params/tutorial002.py!}
```

////

In this case, the function parameter `q` will be optional, and will be `None` by default.

/// check

Also notice that **FastAPI** is smart enough to notice that the path parameter `item_id` is a path parameter and `q` is not, so, it's a query parameter.

///

## Query parameter type conversion

  }

  @Override
  public Set<E> edgesConnecting(N nodeU, N nodeV) {
    NetworkConnections<N, E> connectionsU = checkedConnections(nodeU);
    if (!allowsSelfLoops && nodeU == nodeV) { // just an optimization, only check reference equality
      return ImmutableSet.of();
    }
    checkArgument(containsNode(nodeV), NODE_NOT_IN_GRAPH, nodeV);
    return nodePairInvalidatableSet(connectionsU.edgesConnecting(nodeV), nodeU, nodeV);
  }

  }

  @Override
  public Set<E> edgesConnecting(N nodeU, N nodeV) {
    NetworkConnections<N, E> connectionsU = checkedConnections(nodeU);
    if (!allowsSelfLoops && nodeU == nodeV) { // just an optimization, only check reference equality
      return ImmutableSet.of();
    }
    checkArgument(containsNode(nodeV), NODE_NOT_IN_GRAPH, nodeV);
    return nodePairInvalidatableSet(connectionsU.edgesConnecting(nodeV), nodeU, nodeV);
  }

	}

	vars := mux.Vars(r)
	bucket := vars["bucket"]
	object, err := unescapePath(vars["object"])
	if err != nil {
		writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL)
		return
	}

	// Check for auth type to return S3 compatible error.
	cred, _, s3Error := checkRequestAuthTypeCredential(ctx, r, policy.GetObjectAction)
	if s3Error != ErrNone {
		writeErrorResponse(ctx, w, errorCodes.ToAPIErr(s3Error), r.URL)

	if e != nil {
		return psv, ErrMalformedExpires
	}

	if preSignV4Values.Expires < 0 {
		return psv, ErrNegativeExpires
	}

	// Check if Expiry time is less than 7 days (value in seconds).
	if preSignV4Values.Expires.Seconds() > 604800 {
		return psv, ErrMaximumExpires
	}

	if preSignV4Values.Date.IsZero() || preSignV4Values.Date.Equal(timeSentinel) {

			continue
		}
		if obj.ExistingObject && rule.ExistingObjectReplication.Status == Disabled {
			return false
		}
		if obj.OpType == DeleteReplicationType {
			switch {
			case obj.VersionID != "":
				// check MinIO extension for versioned deletes
				return rule.DeleteReplication.Status == Enabled
			default:
				return rule.DeleteMarkerReplication.Status == Enabled
			}
		} // regular object/metadata replication

     */
    public int hashCode() {
        return java.util.Objects.hash(getType(), getProvides());
    } //-- int hashCode()

    /**
     * Checks equality based on {@link #getType()} and {@link #getProvides()} values.
     */
    public boolean equals(Object other) {
        if (this == other) {
            return true;

  }

  ~ShapeInferenceTest() override {
    TFE_DeleteContextOptions(tfe_context_options_);
    TFE_DeleteContext(tfe_context_);
    TF_DeleteStatus(status_);
  }

  // Checks the expected result of shape inference for the given `op`.
  void CheckOutputShapes(
      TFE_Op* op,
      const std::vector<absl::optional<std::vector<int64_t>>>& input_shapes_vec,

		}
	}
	fmt.Println("Reconstructed", reconstructed, "bytes and verified", verified, "bytes of partial shard with config", shardConfig)
}

// bitrot returns a shard beginning at startOffset after doing bitrot checks.
func bitrot(val []byte, startOffset, shardSize int) ([]byte, error) {
	var res []byte
	for len(val) >= 32 {
		want := val[:32]
		data := val[32:]
		if len(data) > shardSize {
			data = data[:shardSize]

   * {@code null}; it may either return a non-null value or throw an exception.
   *
   * <p>No observable state associated with this cache is modified until loading completes.
   *
   * @throws ExecutionException if a checked exception was thrown while loading the value
   * @throws UncheckedExecutionException if an unchecked exception was thrown while loading the
   *     value
   * @throws ExecutionError if an error was thrown while loading the value