52     public sealed class ByteString : IEnumerable<byte>, IEquatable<ByteString>  class
54         private static readonly ByteString empty = new ByteString(new byte[0]);
67             internal static ByteString FromBytes(byte[] bytes)  in FromBytes()
69                 return new ByteString(bytes);  in FromBytes()
76         internal static ByteString AttachBytes(byte[] bytes)  in AttachBytes()
78             return new ByteString(bytes);  in AttachBytes()
85         private ByteString(byte[] bytes)  in ByteString()  method in Google.Protobuf.ByteString
93         public static ByteString Empty
164         public static ByteString FromBase64(string bytes)  in FromBase64()
168             return bytes == "" ? Empty : new ByteString(Convert.FromBase64String(bytes));  in FromBase64()
178         public static ByteString FromStream(Stream stream)  in FromStream()
202 …public async static Task<ByteString> FromStreamAsync(Stream stream, CancellationToken cancellation…  in FromStreamAsync()
227         public static ByteString CopyFrom(params byte[] bytes)  in CopyFrom()
229             return new ByteString((byte[]) bytes.Clone());  in CopyFrom()
235         public static ByteString CopyFrom(byte[] bytes, int offset, int count)  in CopyFrom()
239             return new ByteString(portion);  in CopyFrom()
248         public static ByteString CopyFrom(ReadOnlySpan<byte> bytes)  in CopyFrom()
250             return new ByteString(bytes.ToArray());  in CopyFrom()
258         public static ByteString CopyFrom(string text, Encoding encoding)  in CopyFrom()
260             return new ByteString(encoding.GetBytes(text));  in CopyFrom()
266         public static ByteString CopyFromUtf8(string text)  in CopyFromUtf8()
339         public static bool operator ==(ByteString lhs, ByteString rhs)  in operator ==()
369         public static bool operator !=(ByteString lhs, ByteString rhs)  in operator !=()
381             return this == (obj as ByteString);  in Equals()
404         public bool Equals(ByteString other)  in Equals()