             
             guard
                 string.count > 1,
-                string.first == "$",
                 let size = Int(string[integerIndex..<integerEnd]),
                 size >= -1,
                 size < responseBuffer.distance(from: position, to: responseBuffer.endIndex)

            
            guard
                string.count > 1,
                string.first == ":",
                let number = Int(string)
            else {
                throw ClientError.parsingError

            
            guard
                string.count > 1,
                let size = Int(string),
                size >= 0
                else {
