# Learn { #learn }

Here are the introductory sections and the tutorials to learn **FastAPI**.

import uvicorn
from fastapi import FastAPI

app = FastAPI()


@app.get("/")
def root():
    a = "a"
    b = "b" + a
    return {"hello world": b}


if __name__ == "__main__":

        deprecated: Optional[bool] = None,
        methods: Optional[list[str]] = None,
        operation_id: Optional[str] = None,
        response_model_include: Optional[IncEx] = None,
        response_model_exclude: Optional[IncEx] = None,
        response_model_by_alias: bool = True,
        response_model_exclude_unset: bool = False,
        response_model_exclude_defaults: bool = False,

package event

import (
	"encoding/xml"
	"reflect"
	"strings"
	"testing"
)

func TestValidateFilterRuleValue(t *testing.T) {
	testCases := []struct {
		value     string
		expectErr bool
	}{
		{"foo/.", true},
		{"../foo", true},

			if dc.IsNil() {
				err = dc.ReadNil()
				if err != nil {
					err = msgp.WrapError(err, "Disable")
					return
				}
				z.Disable = nil
			} else {
				if z.Disable == nil {
					z.Disable = new(bool)
				}
				*z.Disable, err = dc.ReadBool()
				if err != nil {
					err = msgp.WrapError(err, "Disable")
					return
				}
			}
		case "Batch":
			if dc.IsNil() {
				err = dc.ReadNil()

# See the OWNERS docs at https://go.k8s.io/owners

options:
  # make root approval non-recursive
  no_parent_owners: true
approvers:

pkg p3, func BadHop(int, int, int) (bool, bool, *ThirdBase, *ThirdBase, error)
pkg p3, method (*ThirdBase) GoodPlayer() (int, int, int)

	VersionPurgeFailed VersionPurgeStatusType = "FAILED"
)

// Empty returns true if purge status was not set.
func (v VersionPurgeStatusType) Empty() bool {
	return string(v) == ""
}

// Pending returns true if the version is pending purge.
func (v VersionPurgeStatusType) Pending() bool {
	return v == VersionPurgePending || v == VersionPurgeFailed

}

func (e *SelectStatement) isPassingWhereClause(input Record) (bool, error) {
	if e.selectAST.Where == nil {
		return true, nil
	}
	value, err := e.selectAST.Where.evalNode(input, e.tableAlias)
	if err != nil {
		return false, err
	}

	b, ok := value.ToBool()
	if !ok {
		err = fmt.Errorf("WHERE expression did not return bool")
		return false, err
	}

	return b, nil
}

[go1.21](https://golang.org/dl/#stable) ```sh go install github.com/minio/minio@latest ``` The MinIO deployment starts using default root credentials `minioadmin:minioadmin`. You can test the deployment using the MinIO Console, an embedded web-based object browser built into MinIO Server. Point a web browser running on the host machine to <http://127.0.0.1:9000> and log in with the root credentials. You can use the Browser to create buckets, upload objects, and browse the contents of the MinIO server. You can...