"content": {
                "application/json": {
                    "example": {"id": "bar", "value": "The bar tenders"}
                }
            },
        },
    },
)
async def read_item(item_id: str):
    if item_id == "foo":
        return {"id": "foo", "value": "there goes my hero"}
    else:

        buf.append(form.q);
        if (!form.fields.isEmpty() && form.fields.containsKey(LABEL_FIELD)) {
            final String[] values = form.fields.get(LABEL_FIELD);
            final List<String> labelList = new ArrayList<>();
            if (values != null) {
                Collections.addAll(labelList, values);
            }
            for (final String labelTypeValue : labelList) {

    } catch (RuntimeException tolerated) {
      // GWT's TreeMap.values().removeAll(null) doesn't throws NPE.
    }
  }

  @Override
  public void testValuesRetainAllNullFromEmpty() {
    try {
      super.testValuesRemoveAllNullFromEmpty();
    } catch (RuntimeException tolerated) {
      // GWT's TreeMap.values().retainAll(null) doesn't throws NPE.
    }
  }

    void mergeDuplicates(Model model, ModelBuildingRequest request, ModelProblemCollector problems);

    /**
     * Sets default values in the specified model that for technical reasons cannot be set directly in the Modello
     * definition.
     *
     * @param model The model in which to set the default values, must not be {@code null}.
     * @param request The model building request that holds further settings, must not be {@code null}.

        server_name  localhost;

        # To allow special characters in headers
        ignore_invalid_headers off;
        # Allow any size file to be uploaded.
        # Set to a value such as 1000m; to restrict file size to a specific value
        client_max_body_size 0;
        # To disable buffering
        proxy_buffering off;
        proxy_request_buffering off;

        location / {

It doesn't return a large `str` containing the data in JSON format (as a string). It returns a Python standard data structure (e.g. a `dict`) with values and sub-values that are all compatible with JSON.

/// note

`jsonable_encoder` is actually used by **FastAPI** internally to convert data. But it is useful in many other scenarios.

                        final String value;
                        final int pos = s.indexOf('=');
                        if (pos == -1 || pos == s.length() - 1) {
                            name = s;
                            value = StringUtil.EMPTY;
                        } else {
                            name = s.substring(0, pos);
                            value = s.substring(pos + 1);
                        }

    return System.getProperty("java.runtime.name", "").contains("Android");
  }

  private static boolean isWindows() {
    return OS_NAME.value().startsWith("Windows");
  }

  private static boolean isJava8() {
    return JAVA_SPECIFICATION_VERSION.value().equals("1.8");
  }

ECL0091=Illegal URL({0})
ECL0094=IllegalArgumentException occurred when value({7}) of class {5}[{6}] is set to {2}[{3}] field({4}) of class({0})[{1}]. Target class is ({8})[{9}].
ECL0097=Value({1}) of property({0}) can not be converted. because {2}.
ECL0098=Exception occurred when value({7}) of class{5}[{6}] is set to {2}[{3}] property({4}) of class({0})[{1}]. Target class is ({8})[{9}].

        server_name  localhost;

        # To allow special characters in headers
        ignore_invalid_headers off;
        # Allow any size file to be uploaded.
        # Set to a value such as 1000m; to restrict file size to a specific value
        client_max_body_size 0;
        # To disable buffering
        proxy_buffering off;
        proxy_request_buffering off;

        location / {