:   '''[grid] size''' ''master''

Returns the size of the grid (in columns then rows) for the widget, ''master''. The size is determined either by the ''slave'' occupying the largest row or column, or the largest column or row with a '''minsize''', '''weight''', or '''pad''' that is non-zero.

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**See also**
   * [grid]
   * [grid forget] for an example to detect row or column options

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