Task: Data-Imputation (source dataset: tablib)

Please fill in the missing value in the input table. The missing value is denoted by '[MISSING]'. Please only return the value filled in. Do not return the whole table.

No explanation, return the value filled in JSON format: {"value": "filled_value"}. 

Input Table:
| Port   | Unnamed: 1   | AF0           | AF1              | AF2        | AF3                | AF4            | AF5               | AF6       | AF7           | AF8            |   AF9 |   AF10 |   AF11 | AF12             | AF13                    | AF14                    | AF15     | Unnamed: 18   |
|:-------|:-------------|:--------------|:-----------------|:-----------|:-------------------|:---------------|:------------------|:----------|:--------------|:---------------|------:|-------:|-------:|:-----------------|:------------------------|:------------------------|:---------|:--------------|
| None   | None         | SYS_AF        | TIM1/TIM2/LPTIM1 | TIM1/TIM2  | SPI2S2/TIM1/LPTIM3 | I2C1/I2C2/I2C3 | SPI1/SPI2S2       | RF        | USART1/USART2 | LPUART1        |   nan |    nan |    nan | COMP1/COMP2/TIM1 | DEBUG                   | TIM2/TIM16/TIM17/LPTIM2 | EVENOUT  | ADC           |
| PortA  | PA0          | None          | TIM2_CH1         | None       | None               | I2C3_SMBA      | I2S_CKIN          | None      | USART2_CTS    | None           |   nan |    nan |    nan | COMP1_OUT        | DEBUG_PWR_REGLP1S       | TIM2_ETR                | EVENTOUT | ADC123_IN0    |
| PortA  | PA1          | None          | TIM2_CH2         | None       | LPTIM3_OUT         | I2C1_SMBA      | SPI1_SCK          | None      | USART2_RTS    | LPUART1_RTS    |   nan |    nan |    nan | None             | DEBUG_PWR_REGLP2S       | None                    | EVENTOUT | ADC123_IN1    |
| PortA  | PA2          | LSCO          | TIM2_CH3         | None       | None               | None           | None              | None      | USART2_TX     | LPUART1_TX     |   nan |    nan |    nan | COMP2_OUT        | DEBUG_PWR_LDORDY        | None                    | EVENTOUT | ADC123_IN2    |
| PortA  | PA3          | None          | TIM2_CH4         | None       | None               | None           | I2S2_MCK          | None      | USART2_RX     | LPUART1_RX     |   nan |    nan |    nan | None             | None                    | None                    | EVENTOUT | ADC123_IN3    |
| PortA  | PA4          | RTC_OUT2      | LPTIM1_OUT       | None       | None               | None           | SPI1_NSS          | None      | USART2_CK     | None           |   nan |    nan |    nan | None             | DEBUG_SUBGHZSPI_NSSOUT  | LPTIM2_OUT              | EVENTOUT | ADC12_IN4     |
| PortA  | PA5          | None          | TIM2_CH1         | TIM2_ETR   | SPI2_MISO          | None           | SPI1_SCK          | None      | None          | None           |   nan |    nan |    nan | None             | DEBUG_SUBGHZSPI_SCKOUT  | LPTIM2_ETR              | EVENTOUT | ADC12_IN5     |
| PortA  | PA6          | None          | TIM1_BKIN        | None       | None               | I2C2_SMBA      | SPI1_MISO         | None      | None          | LPUART1_CTS    |   nan |    nan |    nan | TIM1_BKIN        | DEBUG_SUBGHZSPI_MISOOUT | TIM16_CH1               | EVENTOUT | ADC12_IN6     |
| PortA  | PA7          | None          | TIM1_CH1N        | None       | None               | I2C3_SCL       | SPI1_MOSI         | None      | None          | None           |   nan |    nan |    nan | COMP2_OUT        | DEBUG_SUBGHZSPI_MOSIOUT | TIM17_CH1               | EVENTOUT | ADC12_IN7     |
| PortA  | PA8          | MCO           | TIM1_CH1         | None       | None               | None           | SPI2_SCK/I2S2_CK  | None      | USART1_CK     | None           |   nan |    nan |    nan | None             | None                    | LPTIM2_OUT              | EVENTOUT | None          |
| PortA  | PA9          | None          | TIM1_CH2         | None       | SPI2_NSS/I2S2_WS   | I2C1_SCL       | SPI2_SCK/I2S2_CK  | None      | USART1_TX     | None           |   nan |    nan |    nan | None             | None                    | None                    | EVENTOUT | None          |
| PortA  | PA10         | RTC_REFIN     | TIM1_CH3         | None       | None               | I2C1_SDA       | SPI2_MOSI/I2S2_SD | None      | USART1_RX     | None           |   nan |    nan |    nan | None             | DEBUG_RF_HSE32RDY       | TIM17_BKIN              | EVENTOUT | None          |
| PortA  | PA11         | None          | TIM1_CH4         | TIM1_BKIN2 | LPTIM3_ETR         | I2C2_SDA       | SPI1_MISO         | None      | USART1_CTS    | None           |   nan |    nan |    nan | TIM1_BKIN2       | DEBUG_RF_NRESET         | None                    | EVENTOUT | None          |
| PortA  | PA12         | None          | TIM1_ETR         | None       | LPTIM3_IN1         | I2C2_SCL       | SPI1_MOSI         | RF_BUSY   | USART1_RTS    | None           |   nan |    nan |    nan | None             | None                    | None                    | EVENTOUT | None          |
| PortA  | PA13         | JTMS/SWDIO    | None             | None       | None               | I2C2_SMBA      | None              | None      | None          | IR_OUT         |   nan |    nan |    nan | None             | None                    | None                    | EVENTOUT | None          |
| PortA  | PA14         | JTCK/SWCLK    | LPTIM1_OUT       | None       | None               | I2C1_SMBA      | None              | None      | None          | None           |   nan |    nan |    nan | None             | None                    | None                    | EVENTOUT | None          |
| PortA  | PA15         | JTDI          | TIM2_CH1         | TIM2_ETR   | None               | I2C2_SDA       | SPI1_NSS          | None      | None          | None           |   nan |    nan |    nan | None             | None                    | None                    | EVENTOUT | None          |
| PortB  | PB0          | None          | None             | None       | None               | None           | None              | None      | None          | None           |   nan |    nan |    nan | COMP1_OUT        | None                    | None                    | EVENTOUT | ADC12_IN8     |
| PortB  | PB1          | None          | None             | None       | None               | None           | None              | None      | None          | LPUART1_RTS_DE |   nan |    nan |    nan | None             | None                    | LPTIM2_IN1              | EVENTOUT | ADC12_IN9     |
| PortB  | PB2          | None          | LPTIM1_OUT       | None       | None               | I2C3_SMBA      | SPI1_NSS          | None      | None          | None           |   nan |    nan |    nan | None             | DEBUG_RF_SMPSRDY        | None                    | EVENTOUT | None          |
| PortB  | PB3          | JTDO/TRACESWO | TIM2_CH2         | None       | None               | None           | SPI1_SCK          | RF_IRQ0   | USART1_RTS    | None           |   nan |    nan |    nan | None             | DEBUG_RF_DTB1           | None                    | EVENTOUT | None          |
| PortB  | PB4          | NJTRST        | None             | None       | None               | I2C3_SDA       | SPI1_MISO         | None      | USART1_CTS    | None           |   nan |    nan |    nan | None             | DEBUG_RF_LDORDY         | TIM17_BKIN              | EVENTOUT | None          |
| PortB  | PB5          | None          | LPTIM1_IN1       | None       | None               | I2C1_SMBA      | SPI1_MOSI         | RF_IRQ1   | USART1_CK     | None           |   nan |    nan |    nan | COMP2_OUT        | None                    | TIM16_BKIN              | EVENTOUT | None          |
| PortB  | PB6          | None          | LPTIM1_ETR       | None       | None               | I2C1_SCL       | None              | None      | USART1_TX     | None           |   nan |    nan |    nan | None             | None                    | TIM16_CH1N              | EVENTOUT | None          |
| PortB  | PB7          | None          | LPTIM1_IN2       | None       | TIM1_BKIN          | I2C1_SDA       | None              | None      | USART1_RX     | None           |   nan |    nan |    nan | None             | None                    | TIM17_CH1N              | EVENTOUT | None          |
| PortB  | PB8          | None          | TIM1_CH2N        | None       | None               | I2C1_SCL       | None              | RF_IRQ2   | None          | None           |   nan |    nan |    nan | None             | None                    | TIM16_CH1               | EVENTOUT | None          |
| PortB  | PB9          | None          | TIM1_CH3N        | None       | None               | I2C1_SDA       | SPI2_NSS/I2S2_WS  | None      | None          | IR_OUT         |   nan |    nan |    nan | None             | None                    | TIM17_CH1               | EVENTOUT | None          |
| PortB  | PB10         | None          | TIM2_CH3         | None       | None               | I2C3_SCL       | SPI2_SCK/I2S2_CK  | None      | None          | LPUART1_RX     |   nan |    nan |    nan | COMP1_OUT        | None                    | None                    | EVENTOUT | None          |
| PortB  | PB11         | None          | TIM2_CH4         | None       | None               | I2C3_SDA       | None              | None      | None          | LPUART1_TX     |   nan |    nan |    nan | COMP2_OUT        | None                    | None                    | EVENTOUT | None          |
| PortB  | PB12         | None          | TIM1_BKIN        | None       | TIM1_BKIN          | I2C3_SMBA      | SPI2_NSS/I2S2_WS  | None      | None          | LPUART1_RTS    |   nan |    nan |    nan | None             | None                    | None                    | EVENTOUT | None          |
| PortB  | PB13         | None          | TIM1_CH1N        | None       | None               | I2C3_SCL       | SPI2_SCK/I2S2_CK  | None      | None          | LPUART1_CTS    |   nan |    nan |    nan | None             | None                    | None                    | EVENTOUT | None          |
| PortB  | PB14         | None          | TIM1_CH2N        | None       | I2S2_MCK           | I2C3_SDA       | SPI2_MISO         | None      | None          | None           |   nan |    nan |    nan | None             | None                    | None                    | EVENTOUT | None          |
| PortB  | PB15         | None          | TIM1_CH3N        | None       | None               | I2C2_SCL       | SPI2_MOSI/I2S2_SD | None      | None          | None           |   nan |    nan |    nan | None             | None                    | None                    | EVENTOUT | None          |
| PortC  | PC0          | None          | LPTIM1_IN1       | None       | None               | I2C3_SCL       | None              | None      | None          | LPUART1_RX     |   nan |    nan |    nan | None             | None                    | LPTIM2_IN1              | EVENTOUT | ADC123_IN10   |
| PortC  | PC1          | None          | LPTIM1_OUT       | None       | SPI2_MOSI/I2S2_SD  | I2C3_SDA       | None              | [MISSING] | None          | LPUART1_TX     |   nan |    nan |    nan | None             | None                    | None                    | EVENTOUT | ADC123_IN11   |
| PortC  | PC2          | None          | LPTIM1_IN2       | None       | None               | None           | SPI2_MISO         | None      | None          | None           |   nan |    nan |    nan | None             | None                    | None                    | EVENTOUT | ADC123_IN12   |
| PortC  | PC3          | None          | LPTIM1_ETR       | None       | None               | None           | SPI2_MOSI/I2S2_SD | None      | None          | None           |   nan |    nan |    nan | None             | None                    | LPTIM2_ETR              | EVENTOUT | ADC123_IN13   |
| PortC  | PC4          | None          | None             | None       | None               | None           | None              | None      | None          | None           |   nan |    nan |    nan | None             | None                    | None                    | EVENTOUT | ADC12_IN14    |
| PortC  | PC5          | None          | None             | None       | None               | None           | None              | None      | None          | None           |   nan |    nan |    nan | None             | None                    | None                    | EVENTOUT | ADC12_IN15    |
| PortC  | PC6          | None          | None             | None       | None               | None           | I2S2_MCK          | None      | None          | None           |   nan |    nan |    nan | None             | None                    | None                    | EVENTOUT | None          |
| PortC  | PC13         | None          | None             | None       | None               | None           | None              | None      | None          | None           |   nan |    nan |    nan | None             | None                    | None                    | EVENTOUT | None          |
| PortC  | PC14         | None          | None             | None       | None               | None           | None              | None      | None          | None           |   nan |    nan |    nan | None             | None                    | None                    | EVENTOUT | None          |
| PortC  | PC15         | None          | None             | None       | None               | None           | None              | None      | None          | None           |   nan |    nan |    nan | None             | None                    | None                    | EVENTOUT | None          |
| PortH  | PH3          | None          | None             | None       | None               | None           | None              | None      | None          | None           |   nan |    nan |    nan | None             | None                    | None                    | EVENTOUT | None          |



row_idx: 34
col_idx: 8
col_name: AF6
label: None
output: value: None
tablib_key: tables/job=github_000005/batch=009026/U9WGIeoUwAxE2K3DOUHuuL3l2t32UZZytfVutbhJ6Hg=