* Correct a typo
Occured is the misspelled form of Occurred.
* Rename getAllMetatdata to getAllMetadata
There is a typo in getAllMetatdata.
* Rename getAllMetatdata to getAllMetadata
There is a typo in getAllMetatdata.
* Rename getAllMetatdata to getAllMetadata
There is a typo in getAllMetatdata.
* Rename getAllMetatdata to getAllMetadata
There is a typo in getAllMetatdata.