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Add documentation for BlurHashEncode #227

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Add documentation for BlurHashEncode #227

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3 changes: 3 additions & 0 deletions Swift/BlurHashEncode.swift
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Original file line number Diff line number Diff line change
@@ -1,6 +1,9 @@
import UIKit

extension UIImage {
/// This returns a string containing the BlurHash for the image, or nil if the image was in a weird format that is not supported.
/// - Parameter components: A Tuple of integers specifying the number of components in the X and Y directions. Both must be between 1 and 9 inclusive, or the function will return nil. 3 to 5 is usually a good range.
/// - Returns: A string containing the BlurHash for the image.
public func blurHash(numberOfComponents components: (Int, Int)) -> String? {
let pixelWidth = Int(round(size.width * scale))
let pixelHeight = Int(round(size.height * scale))
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