         return true
     }
     
-    /// Calculates the file‘s sha256
+    /// Calculate the file‘s sha256
     ///
     /// - parameter digestPointer: hash pointer
     /// - parameter readStream:    readable stream object

        return true
    }
    
    /// Calculates the file‘s sha1
    ///
    /// - parameter digestPointer: hash pointer
    /// - parameter readStream:    readable stream object

        return true
    }
    
    /// Calculate the file‘s sha224
    ///
    /// - parameter digestPointer: hash pointer
    /// - parameter readStream:    readable stream object
