static @NotNull Key key(final @NotNull Namespaced namespaced, @KeyPattern.Value final @NotNull String value) {
    return key(namespaced.namespace(), value);
  }
Creates a key.

@param namespaced the namespace source
@param value the value
@return the key
@throws InvalidKeyException if the namespace or value contains an invalid character
@since 4.4.0
key/src/main/java/net/kyori/adventure/key/Key.java