Open a new message. Will do nothing if an inbox cannot be selected. For example, if you try to compose to a Twitter handle, but have no Twitter inbox.

options: object

Field Name	Type	Description
`from` (optional)	String	The address of the channel that will be used to compose this message.
`to` (optional)	String array	An array of recipients, that can be an email address, a phone number, or a Twitter handle.
`cc` (optional)	String array	An array of recipients, that can be an email address, a phone number, or a Twitter handle.
`bcc` (optional)	String array	An array of strings that represent recipients, that can be an email address, a phone number or a Twitter handle.
`subject` (optional)	String	The subject for emails.
`body` (optional)	String	The content of your message. If you have any, a signature will be appended.
`attachment_uids` (optional)	Integer array	An array of attachment UIDs to attach to the new draft. UIDs can be found in the messages of the current selected conversation (UIDs not found in the conversation will be ignored).
`hide_composer` (optional)	Boolean	Whether or not to hide the composer for the new draft message (default to `false`).

Front.compose({
    from: 'mychannel@company.com',
    to: ['someone@somewhere.com'],
    cc: ['copy@example.com'],
    subject: 'Optional subject',
    body: 'Optional body',
    attachment_uids: [],
    hide_composer: false
});