# Variables and Functions in Expressions

Expressions let a call flow react to live data as a call moves through it. You build them from two kinds of pieces: variables, which carry data about the current call, the components already in the flow, and the system; and functions, which test or transform that data. This page lists every variable and function available in Call Flow Designer.

## Variables

A variable pulls in a value at run time and passes it along the flow. There are two kinds:

- Session variables hold information about the current call. They are available anywhere in the flow and do not depend on any component being present.
- Component variables hold values produced by a specific component, and only become available once that component has been added to the flow.

### Session variables

| Variable | Type | Description | Example |
| --- | --- | --- | --- |
| `$Session.ani` | String | Caller's number, taken from the ANI (Automatic Number Identification) signal. | `"15812340987"` |
| `$Session.callid` | String | Unique identifier for the call. | `"1751336277.2"` |
| `$Session.did` | String | The DID (Direct Inward Dialing) number the caller dialed to reach this flow. | `"5503301"` |
| `$Session.flowNum` | String | The extension number of the call flow the caller reached. | `"6900"` |
| `$Session.transferingNum` | String | The number the call was forwarded from. | `"1000"` |

### Component variables

:::note
Because the same component can appear more than once in a flow, Cloud Voice adds an index to each instance in the order you place it (`Menu 1`, `Menu 2`, and so on). A component variable must include that index so the expression reads from the right instance. The tables below use `{index}` as a placeholder.
:::

Several playback components expose a `ttsResult` variable that reports how text-to-speech conversion went. In every case the value is one of two constants:

- `<Component>TTSResult.Success`, the text was converted to speech and played to the caller.
- `<Component>TTSResult.Timeout`, the text was not converted within the timeout window, so Cloud Voice skipped the prompt and sent the caller straight to the next component.

#### Prompt

| Variable | Type | Description | Example value |
| --- | --- | --- | --- |
| `$Prompt{index}.ttsResult` | String | Text-to-speech result. | `PromptTTSResult.Success` |

#### Menu

| Variable | Type | Description | Example value |
| --- | --- | --- | --- |
| `$Menu{index}.result` | String | Outcome of the Menu component.<br>`MenuResult.Timeout`, no digit before the timeout; routed to the timeout destination.<br>`MenuResult.ValidOption`, valid key; routed to the matching destination.<br>`MenuResult.InvalidOption`, invalid key; routed to the no-match destination. | `MenuResult.InvalidOption` |
| `$Menu{index}.ttsResult` | String | Text-to-speech result. | `MenuTTSResult.Success` |
| `$Menu{index}.userInput` | String | The DTMF (Dual-Tone Multi-Frequency, the touch-tone a keypad sends) digit the caller pressed, excluding the end key set under **Call Flow Designer > Options > End Key**. | `"2"` |

#### User Input

| Variable | Type | Description | Example value |
| --- | --- | --- | --- |
| `$UserInput{index}.result` | String | Outcome of the User Input component.<br>`UserInputResult.Timeout`, no digit before the timeout; routed to the timeout destination.<br>`UserInputResult.ValidOption`, valid key; routed to the matching destination. | `UserInputResult.Timeout` |
| `$UserInput{index}.ttsResult` | String | Text-to-speech result. | `UserInputTTSResult.Success` |
| `$UserInput{index}.userInput` | String | The DTMF digit the caller pressed, excluding the end key (`#` or `*`). | `"2"` |

#### Record

| Variable | Type | Description | Example value |
| --- | --- | --- | --- |
| `$Record{index}.ttsResult` | String | Text-to-speech result. | `RecordTTSResult.Timeout` |

#### Dial by Number

| Variable | Type | Description | Example value |
| --- | --- | --- | --- |
| `$DialByNumber{index}.ttsResult` | String | Text-to-speech result. | `DialByNumberTTSResult.Success` |

#### Transfer

| Variable | Type | Description | Example value |
| --- | --- | --- | --- |
| `$Transfer{index}.ttsResult` | String | Text-to-speech result. | `TransferTTSResult.Success` |

#### Get Extension Presence Status

| Variable | Type | Description | Example value |
| --- | --- | --- | --- |
| `$GetExtensionStatus{index}.currentProfileName` | String | Name of the extension's current presence status. | `"Available"` |
| `$GetExtensionStatus{index}.currentProfile` | String | Name plus any extra detail of the extension's current presence status. | `"Available,work"` |
| `$GetExtensionStatus{index}.isUnavailable` | Boolean | Whether the extension is unregistered. | `False` |
| `$GetExtensionStatus{index}.isInCall` | Boolean | Whether the extension is on a call.<br>`True`, at least one endpoint registered to the extension is on a call.<br>`False`, none of the registered endpoints are on a call. | `True` |
| `$GetExtensionStatus{index}.isInRing` | Boolean | Whether the extension is ringing.<br>`True`, at least one endpoint registered to the extension is ringing.<br>`False`, none of the registered endpoints are ringing. | `False` |

:::note
When you compare a presence status in a function, make sure the constant you test against matches one of the values defined under **PBX Settings > Preferences > Presence**.

![Presence status options listed under PBX Settings, Preferences](/images/pbx/ext-presence-status-cfd.png)
:::

#### Get Queue Agent

| Variable | Type | Description | Example value |
| --- | --- | --- | --- |
| `$GetQueueAgent{index}.agentList` | Object | Agents in a given queue that have a given status, returned as each agent's extension number and current status. | `"1001,Log Out;1003,Log Out;1004,Log Out"` |
| `$GetQueueAgent{index}.agentNumberList` | Object | Agents in a given queue that have a given status, returned as each agent's extension number only. | `"1001,1003,1004"` |

#### Get Queue Info

| Variable | Type | Description | Example value |
| --- | --- | --- | --- |
| `$GetQueueInfo{index}.availableAgents` | Integer | Number of agents currently available to take calls. | `5` |
| `$GetQueueInfo{index}.unavailableAgents` | Integer | Number of agents currently unavailable to take calls. | `1` |
| `$GetQueueInfo{index}.callsActive` | Integer | Number of calls agents are currently handling. | `2` |
| `$GetQueueInfo{index}.callsWaiting` | Integer | Number of calls currently waiting in the queue. | `10` |

#### Get Agent Status

| Variable | Type | Description | Example value |
| --- | --- | --- | --- |
| `$GetAgentStatus{index}.currentProfile` | String | Name plus any extra detail of the agent's current status. | `"Log Out"` |
| `$GetAgentStatus{index}.isInCall` | Boolean | Whether the agent is on a call.<br>`True`, the agent is on a call.<br>`False`, the agent is not on a call. | `True` |
| `$GetAgentStatus{index}.isInRing` | Boolean | Whether the agent's extension is ringing.<br>`True`, the extension is ringing.<br>`False`, the extension is not ringing. | `True` |

:::note
When you compare an agent status in a function, the constant you test against must be one of the supported values:

- Static agents: `"Pause{pause_reason}"`, `"Unpause"`.
- Dynamic agents: `"Log In"`, `"Log Out"`, `"Pause{pause_reason}"`.
:::

#### Get System Info

| Variable | Type | Description | Example value |
| --- | --- | --- | --- |
| `$GetSystemInfo{index}.deviceName` | String | Device name. | `"PBX"` |
| `$GetSystemInfo{index}.modelName` | String | Product model. | `"Cloud Voice"` |
| `$GetSystemInfo{index}.sn` | String | Serial number. | `"3631A2124123"` |
| `$GetSystemInfo{index}.firmwareVersion` | String | Firmware version. | `"84.22.0.17-beta1"` |
| `$GetSystemInfo{index}.systemTime` | String | Current system time. | `"2026/01/30 09:46:44"` |
| `$GetSystemInfo{index}.systemUptime` | Integer | System uptime, in seconds. | `88606` |

#### Get System Capacity

| Variable | Type | Description | Example value |
| --- | --- | --- | --- |
| `$GetSystemCapacity{index}.extensionCapacity` | Integer | Maximum number of extensions supported. | `50` |
| `$GetSystemCapacity{index}.extensionUsed` | Integer | Number of extensions in use. | `33` |
| `$GetSystemCapacity{index}.ccCapacity` | Integer | Maximum number of concurrent calls supported. | `25` |
| `$GetSystemCapacity{index}.ccUsed` | Integer | Number of concurrent calls in use. | `1` |

#### Get Extension Info

| Variable | Type | Description | Example value |
| --- | --- | --- | --- |
| `$GetExtensionInfo{index}.number` | String | Extension number. | `"1001"` |
| `$GetExtensionInfo{index}.name` | String | Extension name. | `"Phillip Huff"` |
| `$GetExtensionInfo{index}.email` | String | Extension's email address. | `"phillip@sample.com"` |
| `$GetExtensionInfo{index}.mobileNumber` | String | Extension's mobile number. | `"15880123456"` |

#### Get Company Contact Info

| Variable | Type | Description | Example value |
| --- | --- | --- | --- |
| `$GetCompanyContactInfo{index}.contactName` | String | Contact name. | `"Leo Poll"` |
| `$GetCompanyContactInfo{index}.company` | String | Company name. | `"Acme"` |
| `$GetCompanyContactInfo{index}.email` | String | Email address. | `"leo@acme.com"` |
| `$GetCompanyContactInfo{index}.phonebookList` | String | Phonebook(s) the contact belongs to. | `"All"` |
| `$GetCompanyContactInfo{index}.remark` | String | Note about the contact. | `"remark"` |
| `$GetCompanyContactInfo{index}.business` | String | Business number. | `"01082345678"` |
| `$GetCompanyContactInfo{index}.business2` | String | Second business number. | `"02160123456"` |
| `$GetCompanyContactInfo{index}.mobile` | String | Mobile number. | `"13800001234"` |
| `$GetCompanyContactInfo{index}.mobile2` | String | Second mobile number. | `"15900005678"` |
| `$GetCompanyContactInfo{index}.home` | String | Home number. | `"01087654321"` |
| `$GetCompanyContactInfo{index}.home2` | String | Second home number. | `"075523456789"` |
| `$GetCompanyContactInfo{index}.businessFax` | String | Business fax number. | `"01082345679"` |
| `$GetCompanyContactInfo{index}.homeFax` | String | Home fax number. | `"02160123457"` |
| `$GetCompanyContactInfo{index}.other` | String | Other phone number. | `"4008880000"` |

#### Database Access

| Variable | Type | Description | Example value |
| --- | --- | --- | --- |
| `$DatabaseAccess{index}.queryResult` | Object | The table returned by a `SELECT` query. | `"demo%40example.com"` |
| `$DatabaseAccess{index}.nonQueryResult` | Integer | Number of rows affected by a non-query statement. | `99` |
| `$DatabaseAccess{index}.scalarResult` | String | The single value returned by a scalar query. | `"10"` |

:::tip
To read data out of a `queryResult` table, pair it with `FX_GET_TABLE_ROW_COUNT(table)` to count the rows and `FX_GET_TABLE_CELL_VALUE(table, row, column)` to pull a specific cell.
:::

#### HTTP Request

| Variable | Type | Description | Example value |
| --- | --- | --- | --- |
| `$HttpRequest{index}.responseContent` | String | Body of the HTTP response. | `{"authenticated": true, "user": "10000"}` |
| `$HttpRequest{index}.responseStatusCode` | String | HTTP status code of the response. | `"200"` |

:::note
When you evaluate an HTTP status code in a function, test against the numeric code alone (for example, `200`), with no accompanying text.
:::

## Functions

Functions evaluate conditions and process data so you can steer a call flow dynamically. Each entry below lists its syntax, the input and output types, and an example. They are grouped by the type of value they return.

### Boolean functions

**FX_AND**: Logical AND across two or more conditions; returns `True` only when all of them are met at once.

- Syntax: `FX_AND(condition1, condition2, …)`
- Input: Boolean. Output: Boolean.
- Example: `FX_AND(FX_EQUAL($UserInput1.userInput, "1"), FX_EQUAL($Session.ani, "1001"))` returns `True` only when the caller pressed 1 and is calling from 1001.

**FX_OR**: Logical OR across two or more conditions; returns `True` when any of them is met.

- Syntax: `FX_OR(condition1, condition2, …)`
- Input: Boolean. Output: Boolean.
- Example: `FX_OR(FX_EQUAL($Session.ani, "1001"), FX_EQUAL($GetAgentStatus1.isInCall, False))` returns `True` if the caller's number is 1001 or the agent is not on a call.

**FX_NOT**: Inverts the Boolean result of a single condition.

- Syntax: `FX_NOT(condition)`
- Input: Boolean. Output: Boolean.
- Example: `FX_NOT($GetExtensionStatus1.isInCall)` returns `True` when the extension is not on a call.

**FX_EQUAL**: Tests whether two values are equal in both value and data type.

- Syntax: `FX_EQUAL(value1, value2)`
- Input: any. Output: Boolean.
- Example: `FX_EQUAL($Session.ani, "1001")` returns `True` if the caller's number is a string with the exact value `"1001"`.

**FX_NOT_EQUAL**: Tests whether two values are not equal.

- Syntax: `FX_NOT_EQUAL(value1, value2)`
- Input: any. Output: Boolean.
- Example: `FX_NOT_EQUAL($GetAgentStatus1.isInRing, True)` returns `True` if the agent is not ringing.

**FX_CONTAINS**: Tests whether the first string contains the second.

- Syntax: `FX_CONTAINS(value1, value2)`
- Input: String. Output: Boolean.
- Example: `FX_CONTAINS($GetExtensionStatus1.currentProfile, "Available")` returns `True` if the extension's presence status contains `Available`.

**FX_GREATER_THAN**: Tests whether the first value is greater than the second.

- Syntax: `FX_GREATER_THAN(value1, value2)`
- Input: Integer. Output: Boolean.
- Example: `FX_GREATER_THAN($GetQueueInfo1.callsWaiting, 5)` returns `True` if more than 5 calls are waiting in the queue.

**FX_GREATER_THAN_OR_EQUAL**: Tests whether the first value is greater than or equal to the second.

- Syntax: `FX_GREATER_THAN_OR_EQUAL(value1, value2)`
- Input: Integer. Output: Boolean.
- Example: `FX_GREATER_THAN_OR_EQUAL($GetQueueInfo1.callsWaiting, 5)` returns `True` if 5 or more calls are waiting.

**FX_LESS_THAN**: Tests whether the first value is less than the second.

- Syntax: `FX_LESS_THAN(value1, value2)`
- Input: Integer. Output: Boolean.
- Example: `FX_LESS_THAN($GetQueueInfo1.callsWaiting, 5)` returns `True` if fewer than 5 calls are waiting.

**FX_LESS_THAN_OR_EQUAL**: Tests whether the first value is less than or equal to the second.

- Syntax: `FX_LESS_THAN_OR_EQUAL(value1, value2)`
- Input: Integer. Output: Boolean.
- Example: `FX_LESS_THAN_OR_EQUAL($GetQueueInfo1.callsWaiting, 5)` returns `True` if 5 or fewer calls are waiting.

**FX_TO_BOOLEAN**: Converts a value to a Boolean.

- Syntax: `FX_TO_BOOLEAN(value)`
- Input: any. Output: Boolean.
- Example: `FX_TO_BOOLEAN($GetExtensionStatus1.currentProfile)` converts the value from a Get Extension Presence Status component to a Boolean, for instance, `"Available"` returns `True`.

### String functions

**FX_CONCATENATE**: Joins every string argument into one string.

- Syntax: `FX_CONCATENATE(string1, string2, …)`
- Input: String. Output: String.
- Example: `FX_CONCATENATE("Caller", $Session.ani, "called", $Session.flowNum)` combines the caller's number and flow number into one string, such as `"Caller1001called6900"`.

**FX_TRIM**: Removes leading and trailing whitespace (spaces, newlines, and so on) from a value.

- Syntax: `FX_TRIM(value)`
- Input: String. Output: String.
- Example: `FX_TRIM(" Hello ")` returns `"Hello"`.

**FX_LEFT**: Returns a set number of characters from the start of the text.

- Syntax: `FX_LEFT(text, count)`
- Input: `text` (String), `count` (Integer). Output: String.
- Example: `FX_LEFT("13800138000", 3)` returns `"138"`.

**FX_MID**: Returns a substring beginning at a given position for a given length.

- Syntax: `FX_MID(text, start_position, length)`
- Input: `text` (String), `start_position` (Integer), `length` (Integer). Output: String.
- Example: `FX_MID("13800138000", 4, 4)` returns `"0013"`, four characters starting at the fourth character.

**FX_RIGHT**: Returns a set number of characters from the end of the text.

- Syntax: `FX_RIGHT(text, count)`
- Input: `text` (String), `count` (Integer). Output: String.
- Example: `FX_RIGHT("13800138000", 4)` returns `"8000"`.

**FX_UPPER**: Converts all characters in the text to uppercase.

- Syntax: `FX_UPPER(text)`
- Input: String. Output: String.
- Example: `FX_UPPER("Cloud Voice")` returns `"CLOUD VOICE"`.

**FX_LOWER**: Converts all characters in the text to lowercase.

- Syntax: `FX_LOWER(text)`
- Input: String. Output: String.
- Example: `FX_LOWER("Cloud Voice")` returns `"cloud voice"`.

**FX_REPLACE**: Replaces every occurrence of a substring with another substring.

- Syntax: `FX_REPLACE(text, target, replacement)`
- Input: `text` (String), `target` (String), `replacement` (String). Output: String.
- Example: `FX_REPLACE("+8613800138000", "+86", "")` strips the `+86` country code and returns `"13800138000"`.

**FX_REPLACE_REG_EXP**: Replaces substrings matching a regular expression with a replacement string.

- Syntax: `FX_REPLACE_REG_EXP(text, expression, replacement)`
- Input: `text` (String), `expression` (String), `replacement` (String). Output: String.
- Example: `FX_REPLACE_REG_EXP("Call123", "[0-9]", "X")` matches every digit and returns `"CallXXX"`.

**FX_JSON_GET_STRING**: Reads a string value from a JSON object by key.

- Syntax: `FX_JSON_GET_STRING(JSONObject, key)`
- Input: `JSONObject` (String), `key` (String). Output: String.
- Example: `FX_JSON_GET_STRING($HttpRequest1.responseContent, "status")` returns the value of the `status` key in the JSON returned by the HTTP Request 1 component.

**FX_TO_STRING**: Converts a value to a string.

- Syntax: `FX_TO_STRING(value)`
- Input: any. Output: String.
- Example: `FX_TO_STRING(10086)` returns `"10086"`.

### Date and time functions

**FX_NOW**: Returns the current date and time as a DateTime value.

- Syntax: `FX_NOW()`
- Input: none. Output: DateTime.
- Example: `FX_NOW()` returns the current system date and time, such as `"2025-07-01 17:29:08"`.

### Number functions

**FX_LEN**: Returns the number of characters in the text.

- Syntax: `FX_LEN(text)`
- Input: String. Output: Integer.
- Example: `FX_LEN("13800138000")` returns `11`.

:::caution
Each arithmetic function comes in two versions. The standard version (for example, `FX_SUM`) works on 32-bit integers, which hold values from roughly -2.1 billion to 2.1 billion. The `_LONG` version (for example, `FX_SUM_LONG`) works on 64-bit integers for larger numbers. If any input or the result would fall outside the 32-bit range, use the `_LONG` version, otherwise the result can be inaccurate.
:::

**FX_SUM**: Adds two or more 32-bit integers.

- Syntax: `FX_SUM(value1, value2, …)`
- Input: Integer. Output: Integer.
- Example: `FX_SUM(100, 200, 300)` returns `600`.

**FX_SUM_LONG**: Adds two or more 64-bit integers.

- Syntax: `FX_SUM_LONG(value1, value2, …)`
- Input: Integer. Output: Integer.
- Example: `FX_SUM_LONG(1000000000, 2500000000)` returns `3500000000`.

**FX_NEGATIVE**: Returns the negative of a 32-bit integer.

- Syntax: `FX_NEGATIVE(value)`
- Input: Integer. Output: Integer.
- Example: `FX_NEGATIVE(100)` returns `-100`.

**FX_NEGATIVE_LONG**: Returns the negative of a 64-bit integer.

- Syntax: `FX_NEGATIVE_LONG(value)`
- Input: Integer. Output: Integer.
- Example: `FX_NEGATIVE_LONG(1000000000)` returns `-1000000000`.

**FX_MULTIPLY**: Multiplies two or more 32-bit integers.

- Syntax: `FX_MULTIPLY(value1, value2, …)`
- Input: Integer. Output: Integer.
- Example: `FX_MULTIPLY(10, 20, 3)` returns `600`.

**FX_MULTIPLY_LONG**: Multiplies two or more 64-bit integers.

- Syntax: `FX_MULTIPLY_LONG(value1, value2, …)`
- Input: Integer. Output: Integer.
- Example: `FX_MULTIPLY_LONG(100000, 20000)` returns `2000000000`.

**FX_DIVIDE**: Divides the first 32-bit integer by the second.

- Syntax: `FX_DIVIDE(value1, value2)`
- Input: Integer. Output: Integer.
- Example: `FX_DIVIDE(100, 20)` returns `5`.

**FX_DIVIDE_LONG**: Divides the first 64-bit integer by the second.

- Syntax: `FX_DIVIDE_LONG(value1, value2)`
- Input: Integer. Output: Integer.
- Example: `FX_DIVIDE_LONG(10000000000, 2000000000)` returns `5`.

**FX_ABS**: Returns the absolute (non-negative) value of a 32-bit integer.

- Syntax: `FX_ABS(value)`
- Input: Integer. Output: Integer.
- Example: `FX_ABS(-100)` returns `100`.

**FX_ABS_LONG**: Returns the absolute (non-negative) value of a 64-bit integer.

- Syntax: `FX_ABS_LONG(value)`
- Input: Integer. Output: Integer.
- Example: `FX_ABS_LONG(-10000000000)` returns `10000000000`.

**FX_GET_TABLE_ROW_COUNT**: Returns the number of rows in a table.

- Syntax: `FX_GET_TABLE_ROW_COUNT(table)`
- Input: any. Output: Integer.
- Example: `FX_GET_TABLE_ROW_COUNT($DatabaseAccess1.queryResult)` returns the row count of the result from the Database Access 1 component.

**FX_GET_LIST_ITEM_COUNT**: Returns the number of items in a list.

- Syntax: `FX_GET_LIST_ITEM_COUNT(list)`
- Input: any. Output: Integer.
- Example: `FX_GET_LIST_ITEM_COUNT($DatabaseAccess1.queryResult)` returns the item count of the result from the Database Access 1 component.

**FX_JSON_GET_INTEGER**: Reads an integer value from a JSON object by key.

- Syntax: `FX_JSON_GET_INTEGER(JSONObject, key)`
- Input: `JSONObject` (String), `key` (String). Output: Integer.
- Example: `FX_JSON_GET_INTEGER($HttpRequest1.responseContent, "httpStatus")` returns the value of the `httpStatus` key in the JSON returned by the HTTP Request 1 component.

**FX_TO_INTEGER**: Converts a value to a 32-bit integer.

- Syntax: `FX_TO_INTEGER(value)`
- Input: String. Output: Integer.
- Example: `FX_TO_INTEGER("12345")` returns the integer `12345`.

**FX_TO_LONG**: Converts a value to a 64-bit integer.

- Syntax: `FX_TO_LONG(value)`
- Input: String. Output: Integer.
- Example: `FX_TO_LONG("1234567890123")` returns the integer `1234567890123`.

### Object functions

**FX_GET_TABLE_CELL_VALUE**: Returns the value in a table cell at a given row and column.

- Syntax: `FX_GET_TABLE_CELL_VALUE(table, row, column)`
- Input: `table` (any), `row` (Integer), `column` (Integer). Output: Object.
- Example: `FX_GET_TABLE_CELL_VALUE($DatabaseAccess1.queryResult, 0, 1)` returns the value in the first row and second column of the result from the Database Access 1 component.

**FX_GET_LIST_ITEM**: Returns the item at a given index in a list.

- Syntax: `FX_GET_LIST_ITEM(list, index)`
- Input: `list` (any), `index` (Integer). Output: Object.
- Example: `FX_GET_LIST_ITEM($DatabaseAccess1.queryResult, 2)` returns the third item in the result from the Database Access 1 component.

**FX_GET_JSON_ARRAY_ITEM**: Returns a field from the object at a given index within a JSON array.

- Syntax: `FX_GET_JSON_ARRAY_ITEM(jsonData, arrayKey, index, fieldName)`
- Input: `jsonData` (String), `arrayKey` (String), `index` (Integer), `fieldName` (String). Output: Object.
- Example: `FX_GET_JSON_ARRAY_ITEM($HttpRequest1.responseContent, "data", 0, "phoneNumber")` returns the `phoneNumber` value from the first object in the `data` array.

**FX_JSON_GET_OBJECT**: Returns a nested JSON object from a parent object by key.

- Syntax: `FX_JSON_GET_OBJECT(JSONObject, key)`
- Input: `JSONObject` (String), `key` (String). Output: Object.
- Example: `FX_JSON_GET_OBJECT($HttpRequest1.responseContent, "data")` returns the JSON object under the `data` key in the JSON returned by the HTTP Request 1 component.