function getSamplerKey(
  minificationFilter,
  magnificationFilter,
  maximumAnisotropy,
) {
  return `${minificationFilter}:${magnificationFilter}:${maximumAnisotropy}`;
}
Create a WebGL texture for a given {@link Imagery} instance.

@private

@param {Context} context The rendered context to use to create textures.
@param {Imagery} imagery The imagery for which to create a texture.