Function GLKVertexAttributeParametersFromModelIO 

pub unsafe extern "C-unwind" fn GLKVertexAttributeParametersFromModelIO(
    vertex_format: MDLVertexFormat,
) -> GLKVertexAttributeParameters

👎Deprecated:

The OpenGL API is deprecated by Apple

Available on macOS and crate feature GLKModel and crate feature objc2-model-io and crate feature objc2-open-gl only.

Returns parameters to use in a call to glVertexAttribPointer given a MDLVertexFormat