Parameters to set the default fee rate for a FeeTier.
The public key for the WhirlpoolsConfig this fee-tier is initialized in
Authority authorized in the WhirlpoolsConfig to set default fee rates.
The tick spacing of the fee-tier that we would like to update.
The new default fee rate for this fee-tier. Stored as a hundredths of a basis point.
Parameters to set the default fee rate for a FeeTier.