@type t() :: %Envoy.Api.V2.Core.RateLimitSettings{
__unknown_fields__: [
{field_number :: integer(), Protobuf.Wire.Types.wire_type(),
value :: term()}
],
fill_rate: Google.Protobuf.DoubleValue.t() | nil,
max_tokens: Google.Protobuf.UInt32Value.t() | nil
}