get_citizen
@mount("citizens.get_citizen")
query get_citizen( account_id: byte_array): (account_id: byte_array, type: citizen_types, created_at: integer, wallet_address: byte_array, (total_proposals: big_integer, total_votes: big_integer))?
Retrieves a citizen's details based on the provided account ID.
Return
A mapped citizen object if the citizen exists, or null if no citizen is found.
Parameters
account_id
The account ID used to identify the citizen.