public Builder setRole(im.turms.client.model.proto.constant.GroupMemberRole value) {
            copyOnWrite();
            instance.setRole(value);
            return this;
        }
<code>optional .im.turms.proto.GroupMemberRole role = 4;</code>

@param value The enum numeric value on the wire for role to set.
@return This builder for chaining.
turms-client-kotlin/src/main/java/im/turms/client/model/proto/request/group/member/CreateGroupMembersRequest.java