GObject
    ├── VipsObject
    │   ├── VipsConnection
    │   │   ├── VipsSource
    │   │   │   ╰── VipsSourceCustom
    │   │   ╰── VipsTarget
    │   │       ╰── VipsTargetCustom
    │   ├── VipsOperation
    │   │   ╰── VipsForeign
    │   │       ├── VipsForeignLoad
    │   │       ╰── VipsForeignSave
    │   ├── VipsImage
    │   ├── VipsInterpolate
    │   ├── VipsRegion
    │   ├── VipsSbuf
    │   ╰── VipsThreadState
    ╰── GInputStream
        ╰── VipsGInputStream
    GEnum
    ├── VipsAccess
    ├── VipsAlign
    ├── VipsAngle45
    ├── VipsAngle
    ├── VipsBandFormat
    ├── VipsBlendMode
    ├── VipsCoding
    ├── VipsCombine
    ├── VipsCombineMode
    ├── VipsCompassDirection
    ├── VipsDemandStyle
    ├── VipsDirection
    ├── VipsExtend
    ├── VipsFailOn
    ├── VipsForeignDzContainer
    ├── VipsForeignDzDepth
    ├── VipsForeignDzLayout
    ├── VipsForeignHeifCompression
    ├── VipsForeignHeifEncoder
    ├── VipsForeignPpmFormat
    ├── VipsForeignSubsample
    ├── VipsForeignTiffCompression
    ├── VipsForeignTiffPredictor
    ├── VipsForeignTiffResunit
    ├── VipsForeignWebpPreset
    ├── VipsImageType
    ├── VipsIntent
    ├── VipsInteresting
    ├── VipsInterpretation
    ├── VipsKernel
    ├── VipsOperationBoolean
    ├── VipsOperationComplex2
    ├── VipsOperationComplex
    ├── VipsOperationComplexget
    ├── VipsOperationMath2
    ├── VipsOperationMath
    ├── VipsOperationMorphology
    ├── VipsOperationRelational
    ├── VipsOperationRound
    ├── VipsPCS
    ├── VipsPrecision
    ├── VipsRegionShrink
    ├── VipsSaveable
    ├── VipsSdfShape
    ├── VipsSize
    ├── VipsTextWrap
    ╰── VipsToken
    GBoxed
    ├── VipsArea
    ├── VipsArrayDouble
    ├── VipsArrayImage
    ├── VipsArrayInt
    ├── VipsSaveString
    ├── VipsBlob
    ├── VipsRefString
    ╰── VipsThing
    GFlags
    ├── VipsArgumentFlags
    ├── VipsForeignFlags
    ├── VipsForeignKeep
    ├── VipsForeignPngFilter
    ╰── VipsOperationFlags