class ActiveRecord::ConnectionAdapters::ConnectionHandler

def clear_active_connections!(role = ActiveRecord::Base.current_role)

Experimental RBS support (using type sampling data from the type_fusion project). 

def clear_active_connections!: (?Symbol role) -> untyped

This signature was generated using 10 samples from 1 application.

longer alive.
and also returns connections to the pool cached by threads that are no
Returns any connections in use by the current thread back to the pool, 
def clear_active_connections!(role = ActiveRecord::Base.current_role)
  connection_pool_list(role).each(&:release_connection)
end