Returns the message api key number.

Receive a binary in the kafka wire format and deserialize it into a map.

Response content fields:

• throttle_time_ms: The duration in milliseconds for which the request was throttled due to a quota violation, or zero if the request did not violate any quota. (int32 | versions 0+)

• groups: Each described group. ([]DescribedGroup | versions 0+)

  • error_code: The describe error, or 0 if there was no error. (int16 | versions 0+)

  • error_message: The top-level error message, or null if there was no error. (string | versions 0+)

  • group_id: The group ID string. (string | versions 0+)

  • group_state: The group state string, or the empty string. (string | versions 0+)

  • group_epoch: The group epoch. (int32 | versions 0+)

  • assignment_epoch: The assignment epoch. (int32 | versions 0+)

  • assignor_name: The selected assignor. (string | versions 0+)

  • members: The members. ([]Member | versions 0+)

    • member_id: The member ID. (string | versions 0+)

    • instance_id: The member instance ID. (string | versions 0+)

    • rack_id: The member rack ID. (string | versions 0+)

    • member_epoch: The current member epoch. (int32 | versions 0+)

    • client_id: The client ID. (string | versions 0+)

    • client_host: The client host. (string | versions 0+)

    • subscribed_topic_names: The subscribed topic names. ([]string | versions 0+)

    • subscribed_topic_regex: the subscribed topic regex otherwise or null of not provided. (string | versions 0+)

    • assignment: The current assignment. (Assignment | versions 0+)

    • target_assignment: The target assignment. (Assignment | versions 0+)

  • authorized_operations: 32-bit bitfield to represent authorized operations for this group. (int32 | versions 0+)

Returns the current max supported version of this message.

Returns the current min supported version of this message.

Receives a map and serialize it to kafka wire format of the given version.

Input content fields:

• group_ids: The ids of the groups to describe ([]string | versions 0+)

• include_authorized_operations: Whether to include authorized operations. (bool | versions 0+)