emojiName property
User-provided name for the custom emoji, which is unique within the organization.
Required when the custom emoji is created, output only otherwise. Emoji
names must start and end with colons, must be lowercase and can only
contain alphanumeric characters, hyphens, and underscores. Hyphens and
underscores should be used to separate words and cannot be used
consecutively. Example: :valid-emoji-name:
Optional. Immutable.
Implementation
core.String? emojiName;