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- (CGImageRef)createMaskFromAlphaChannel:(UIImage *)image
{
	size_t width = image.size.width;
	size_t height = image.size.height; 

	NSMutableData *data = [NSMutableData dataWithLength:width*height];

	CGContextRef context = CGBitmapContextCreate(
		[data mutableBytes], width, height, 8, width, NULL, kCGImageAlphaOnly);

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void qt_dispatch_sync_to_main_queue(dispatch_block_t aBlock) {
    if ([NSThread isMainThread]) {
        aBlock();
    } else {
        dispatch_sync(dispatch_get_main_queue(), aBlock);
    }
}

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while read requirement; do conda install --no-update-deps --yes $requirement || pip install $requirement; done < requirements.txt

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var crypto = require('crypto')
  , rrange = 4294967296;

/**
 * Return an integer, pseudo-random number in the range [0, 2^32).
 */

var nextInt = function() {
  return crypto.randomBytes(4).readUInt32BE(0);
};