Estimate gas price

Gives an estimate of the gas unit price required to get a transaction on chain in a reasonable amount of time. The gas unit price is the amount that each transaction commits to pay for each unit of gas consumed in executing the transaction. The estimate is based on recent history: it gives the minimum gas that would have been required to get into recent blocks, for blocks that were full. (When blocks are not full, the estimate will match the minimum gas unit price.)

The estimation is given in three values: de-prioritized (low), regular, and prioritized (aggressive). Using a more aggressive value increases the likelihood that the transaction will make it into the next block; more aggressive values are computed with a larger history and higher percentile statistics. More details are in AIP-34.