`TReportApiColumnSpec`
pt		SetcolumnName
pt		SetcustomDimensionName
pt		SetcustomMetricName
pt		SetendDate
pt		SetgroupByColumn
pt		SetheaderText
pt		SetplatformSource
pt		SetproductReportPerspective
pt		SetsavedColumnName
pt		SetstartDate

`TGoogleBaseObject`
		AllowAdditionalProperties