How to Install and Uninstall gajim Package on openSUSE Leap

Information for package gajim:
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Repository : Main Repository
Name : gajim
Version : 1.1.3-bp155.2.10
Arch : noarch
Vendor : openSUSE
Installed Size : 14.0 MiB
Installed : No
Status : not installed
Source package : gajim-1.1.3-bp155.2.10.src
Upstream URL : https://gajim.org/
Summary : XMPP client written in Python and Gtk3
Description :
Gajim is a Jabber/XMPP client. It works with MATE and GNOME, but does
require neither to run.
Features:
* Tabbed chat window and single window modes.
* Group chat support (with Multi-User Chat protocol), invitation,
chat to group chat transformation, minimise group chat to roster.
* Emoticons, avatars, PEP (user activity, mood and tune).
* Audio / video conferences.
* File transfer, room bookmarks.
* Metacontacts support.
* Trayicon, speller, extended chat history functionalities.
* TLS, GPG and End-To-End encryption support (with SSL legacy support).
* Transport registration support.
* Service discovery including nodes, user search.
* Wikipedia, dictionary and search engine lookup.
* Multiple accounts support.
* DBus capabilities. Read more information.
* XML console.
* Link local (bonjour / zeroconf), BOSH.
* Other features via plugins.