how to configure default enum value in mongoose sub doc?

I am using mongodb along with mongoose js in my node js application . I created a mongoose document schema called “CompanySchema” which is using “TeamSchema” (another mongoose document schema) as a sub document. Inside this “TeamSchema” it has an array defined as employees which is using “EmployeeSchema” (another mongoose document) as a subdocument. So my question is when I am trying to save the document “CompanySchema” the default value for requirement status “unmet” is not getting set. So can you guys explain me what I am doing wrong in here?

export var EmployeeSchema = new Schema({
 id: {
   type: String
 },
 requirement: {
   type: {
     status: {
       type: String,
       enum: ['met' 'unmet'],
       default : 'unmet'
     }
   },
   default: null
 },
});

export var TeamSchema = mongoose.model<TeamModel>("Team", new mongoose.Schema({
 id: {
   type: String,
 },
 name: {
   type: String
 },
 employees: [EmployeeSchema]
}));

export var CompanySchema = mongoose.model<CompanyModel>("Company", new mongoose.Schema({
 id: {
   type: String
 },
 team: TeamSchema.schema,
}));

via Panduka Loc