This is a custom component for Home Assistant that can be used to modify, patch or overwrite constants in other components. Authored by @puddly

To install, place the constant_modifier in your Home Assistant configuration directory under the custom_components folder

Add to configuration.yaml any constants you need to modify. For example

constant_modifier:
  homeassistant.components.websocket_api.http:
    MAX_PENDING_MSG: 4096
    PENDING_MSG_PEAK: 2048

  zhaquirks.xiaomi:
    MotionCluster.reset_s: 5

This component was created to battle the issue of "Client exceeded max pending messages" when the websocket queue fills in Home Assistant. This seems to be an uncommon issue when using Node-RED and node-red-contrib-home-assistant-websocket in large installations.