code: func (g *GraphDefinition) GetPrecisionOk() (PrecisionT, bool) {
  	if g == nil || g.Precision == nil {
  		return "", false
  	}
  	return *g.Precision, true
  }
docs: // GetPrecisionOk returns a tuple with the Precision field if it's non-nil, zero value otherwise
  // and a boolean to check if the value has been set.