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The traits for putting freezes within a single fungible token class.

See the crate::traits::fungibles doc for more information about fungibles traits.


  • Trait for inspecting a fungible asset which can be frozen. Freezing is essentially setting a minimum balance below which the total balance (inclusive of any funds placed on hold) may not be normally allowed to drop. Generally, freezers will provide an “update” function such that if the total balance does drop below the limit, then the freezer can update their housekeeping accordingly.
  • Trait for introducing, altering and removing locks to freeze an account’s funds so they never go below a set minimum.