o_e_s_fbo_render_mipmap library Null safety

WebGL OES_fbo_render_mipmap Extension Specification

https://www.khronos.org/registry/webgl/extensions/OES_fbo_render_mipmap/

Classes

OES_fbo_render_mipmap
The extension is part of the WebGL API and makes it possible to attach any level of a texture to a framebuffer object. [...]