of floor to compute the output shape
  * **count_include_pad** (*bool*) -- when True, will include the
    zero-padding in the averaging calculation

  * **divisor_override** (*Optional**[**int**]*) -- if specified,
    it will be used as divisor, otherwise "kernel_size" will be
    used

Shape:
      * Input: (N, C, D_{in}, H_{in}, W_{in}) or (C, D_{in}, H_{in},
        W_{in}).
  * Output: (N, C, D_{out}, H_{out}, W_{out}) or (C, D_{out},
    H_{out}, W_{out}), where

       D_{out} = \left\lfloor\frac{D_{in} + 2 \times
       \text{padding}[0] -
       \text{kernel\_size}[0]}{\text{stride}[0]} + 1\right\rfloor

       H_{out} = \left\lfloor\frac{H_{in} + 2 \times
       \text{padding}[1] -
       \text{kernel\_size}[1]}{\text{stride}[1]} + 1\right\rfloor

       W_{out} = \left\lfloor\frac{W_{in} + 2 \times
       \text{padding}[2] -
       \text{kernel\_size}[2]}{\text{stride}[2]} + 1\right\rfloor

Examples: