package tezos-protocol-016-PtMumbai

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in-package search v0.2.0

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Options available for the Liquidity Baking per-block vote

type liquidity_baking_toggle_vote =

| LB_on
| LB_off
| LB_pass

val liquidity_baking_toggle_vote_encoding : 
  liquidity_baking_toggle_vote
    Tezos_protocol_environment_016_PtMumbai.Data_encoding.encoding

Exponential moving average of toggle votes. Represented as an int32 between 0 and 2,000,000. It is an exponential moving average of the LB_off votes over a window of the most recent 2000 blocks that did not vote LB_pass.

module Toggle_EMA : sig ... end

val compute_new_ema : 
  toggle_vote:liquidity_baking_toggle_vote ->
  Toggle_EMA.t ->
  Toggle_EMA.t

compute_new_ema ~toggle_vote old_ema returns the value new_ema of the exponential moving average old_ema updated by the vote toggle_vote.

It is updated as follows:

if toggle_vote is LB_pass then new_ema = old_ema,
if toggle_vote is LB_off, then new_ema = (1999 * eman // 2000) + 1,000,000,
if toggle_vote is LB_on, then new_ema = (1999 * eman // 2000).

The multiplication is performed in Z.t to avoid overflows, division is rounded toward 1,000,000,000 (the middle of the interval).