Package params provides a globally available parameter store.
There are two main types, Keeper and Subspace. Subspace is an isolated namespace for a paramstore, where keys are prefixed by preconfigured spacename. Keeper has a permission to access all existing spaces.
Subspace can be used by the individual keepers, which need a private parameter store
that the other keepers cannot modify. The params Keeper can be used to add a route to x/gov router in order to modify any parameter in case a proposal passes.
The following contents explains how to use params module for master and user modules.