```

这表示：

* 变量 `prices` 是一个 `dict`：
    * 这个 `dict` 的所有键为 `str` 类型（可以看作是字典内每个元素的名称）。
    * 这个 `dict` 的所有值为 `float` 类型（可以看作是字典内每个元素的价格）。

### 类作为类型

你也可以将类声明为变量的类型。

假设你有一个名为 `Person` 的类，拥有 name 属性：

```Python hl_lines="1-3"
{!../../docs_src/python_types/tutorial010.py!}
```

接下来，你可以将一个变量声明为 `Person` 类型：

```Python hl_lines="6"
{!../../docs_src/python_types/tutorial010.py!}
```

<mxfile host="65bd71144e">
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        <mxGraphModel dx="5190" dy="5090" grid="1" gridSize="10" guides="1" tooltips="1" connect="1" arrows="1" fold="1" page="1" pageScale="1" pageWidth="1920" pageHeight="1200" math="0" shadow="0">
            <root>
                <mxCell id="0"/>
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pkg crypto/x509, type CertificateInvalidError struct, Detail string
pkg crypto/x509, type CertificateRequest struct, URIs []*url.URL
pkg crypto/x509, type VerifyOptions struct, MaxConstraintComparisions int
pkg crypto/x509/pkix, method (Name) String() string
pkg crypto/x509/pkix, method (RDNSequence) String() string
pkg database/sql, func OpenDB(driver.Connector) *DB
pkg database/sql/driver, type Connector interface { Connect, Driver }

The most secure is the code flow, but it's more complex to implement as it requires more steps. As it is more complex, many providers end up suggesting the implicit flow.

/// note

It's common that each authentication provider names their flows in a different way, to make it part of their brand.

But in the end, they are implementing the same OAuth2 standard.

///

    --hash=sha256:f1724ddcdf5edbaf615a62110af47407f1719b8d02e68ccee60683acb5f74da1
    # via
    #   -r ci/official/requirements_updater/requirements.in
    #   jax
    #   keras-nightly
namex==0.0.8 \
    --hash=sha256:32a50f6c565c0bb10aa76298c959507abdc0e850efe085dc38f3440fcb3aa90b \
    --hash=sha256:7ddb6c2bb0e753a311b7590f84f6da659dd0c05e65cb89d519d54c0a250c0487
    # via keras-nightly
numpy==2.1.1 \

    --hash=sha256:f1724ddcdf5edbaf615a62110af47407f1719b8d02e68ccee60683acb5f74da1
    # via
    #   -r ci/official/requirements_updater/requirements.in
    #   jax
    #   keras-nightly
namex==0.0.8 \
    --hash=sha256:32a50f6c565c0bb10aa76298c959507abdc0e850efe085dc38f3440fcb3aa90b \
    --hash=sha256:7ddb6c2bb0e753a311b7590f84f6da659dd0c05e65cb89d519d54c0a250c0487
    # via keras-nightly
numpy==2.0.2 \

    --hash=sha256:f1724ddcdf5edbaf615a62110af47407f1719b8d02e68ccee60683acb5f74da1
    # via
    #   -r ci/official/requirements_updater/requirements.in
    #   jax
    #   keras-nightly
namex==0.0.8 \
    --hash=sha256:32a50f6c565c0bb10aa76298c959507abdc0e850efe085dc38f3440fcb3aa90b \
    --hash=sha256:7ddb6c2bb0e753a311b7590f84f6da659dd0c05e65cb89d519d54c0a250c0487
    # via keras-nightly
numpy==1.26.4 \

func (sys *IAMSys) GetUserInfo(ctx context.Context, name string) (u madmin.UserInfo, err error) {
	if !sys.Initialized() {
		return u, errServerNotInitialized
	}

	loadUserCalled := false
	select {
	case <-sys.configLoaded:
	default:
		sys.store.LoadUser(ctx, name)
		loadUserCalled = true
	}

	userInfo, err := sys.store.GetUserInfo(name)
	if err == errNoSuchUser && !loadUserCalled {

pkg text/template, method (ExecError) Error() string
pkg text/template, type ExecError struct
pkg text/template, type ExecError struct, Err error

        entryOf(k10, v10));
  }

  /**
   * Returns an immutable map containing the same entries as {@code map}, sorted by the natural
   * ordering of the keys.
   *
   * <p>Despite the method name, this method attempts to avoid actually copying the data when it is
   * safe to do so. The exact circumstances under which a copy will or will not be performed are
   * undocumented and subject to change.
   *