Bug: Passing undefined fileIds value to Draft throws error

[dereekb]

I ran into an issue where when fieldIds is undefined on the build input, I get the error "TypeError: this.fileIds is not a function".

The behavior I'm expecting is that the fileIds field is ignored.

const template = {
// ...and other values
fileIds: undefined
};

    const nylasDraft = this.connection.drafts.build(template) as Draft;  // Ok here

    await nylasDraft.save();  // Error Thrown within here.

TypeError: this.fileIds is not a function
optimiser-node-server_1         |     at Draft.toJSON (/parent/server/node_modules/nylas/lib/models/draft.js:42:30)
optimiser-node-server_1         |     at Draft.RestfulModel.saveRequestBody (/parent/server/node_modules/nylas/lib/models/restful-model.js:57:21)
optimiser-node-server_1         |     at Draft.Message.saveRequestBody (/parent/server/node_modules/nylas/lib/models/message.js:86:53)
optimiser-node-server_1         |     at Draft.saveRequestBody (/parent/server/node_modules/nylas/lib/models/draft.js:61:49)
optimiser-node-server_1         |     at Draft.RestfulModel._save (/parent/server/node_modules/nylas/lib/models/restful-model.js:90:24)
optimiser-node-server_1         |     at Draft.save (/parent/server/node_modules/nylas/lib/models/draft.js:55:21)

For now I'm sanitizing the input and removing all keys with undefined values from the template.

[mrashed-dev]

The issue has been reproduced, identified, and fixed. We were calling this. in reference to a parent function instead of super.. The PR has been created to address this issue and will be included in the next minor release.