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# Type Factory Metafunctions
[Metafunctions]

## Detailed Description

Metafunctions that construct GIL types from related types or from components.

## Modules

| xxx_type
| Returns the type of a homogeneous GIL construct given its elements (channel, layout, whether it is planar, step, mutable, etc.).

| xxx_type_from_pixel
| Returns the type of a GIL construct given its pixel type, whether it is planar, step, mutable, etc.

| derived_xxx_type
| Returns the type of a homogeneous GIL construct given a related construct by changing some of its properties.

## Classes

struct | type_from_x_iterator
| Given a pixel iterator defining access to pixels along a row, returns the types of the corresponding built-in step_iterator, xy_locator, image_view. More...