pan> decrypt_max_plaintext_length : <span><a href="../Types/Session/index.html#type-t">Types.Session.t</a> Ctypes_static.ptr</span> <span>&#45;&gt;</span> Unsigned.size_t <span>&#45;&gt;</span> <span>unit Ctypes_static.ptr</span> <span>&#45;&gt;</span> Unsigned.size_t <span>&#45;&gt;</span> Unsigned.size_t</code></dt><dd><p><code>decrypt_max_plaintext_length sess msg_type msg msg_len</code></p><p>The maximum number of bytes of plain-text a given message could decode to. The actual size could be different du