# CoreMotionMagnetometerDataWithSuccess
Dictionary passed to the callback of the startMagnetometerUpdates method.
NOTE
This is an abstract type. Any object of this structure can be used where this type is used.
# Properties
# code READONLY
code :Number
An error code describing the error if there was one.
See ERROR
constants for possible values.
# magneticField READONLY
magneticField :CoreMotionMagneticField
The magnetic field measured by the magnetometer.
For more information, see iOS Developer Library: CMMagnetometerData.magneticField property.
# timestamp READONLY
timestamp :Number
The time when the logged item is valid.
The time stamp is the amount of time in milliseconds since the phone booted.