fun Any?.toHashMap(): HashMap<String, RequestBody> {
    val map = HashMap<String, RequestBody>()
    if(this == null){
        return map
    }

    for (field in this.javaClass.declaredFields) {
        val temp = field.isAccessible
        field.isAccessible = true

        val fieldName = try {
            field.getAnnotation(SerializedName::class.java).value
        } catch (e: Exception) {
            field.name.toString()
        }

        map[fieldName] = RequestBody.create(MediaType.parse("text/plain"), if (field.get(this) == null) "" else field.get(this).toString())
        field.isAccessible = temp
    }

    return map
}