getMembership method
Allows to get Member objects for all guilds for bot user.
Implementation
Map<Guild, Member> getMembership() {
final membershipCollection = <Guild, Member>{};
for (final guild in client.guilds.values) {
final member = guild.members[this.id];
if (member != null) {
membershipCollection[guild] = member;
}
}
return membershipCollection;
}