Changes in version 0.1.0 (2023-03-07)                  

  - fixed read.gson() by setting the default values (if empty) to NULL
    (to make it compatible with 'clusterProfiler') (2023-03-03, Mon)
  - set gsname="WikiPathways" in read.gmt.wp(output = "gson")
    (2022-09-23, Fri)

                 Changes in version 0.0.9 (2022-09-06)                  

  - gsonList function to construct GSONList object and corresponding
    print method implemented (2022-09-06, Tue)

                 Changes in version 0.0.8 (2022-08-20)                  

  - remove iconv in write.gson as it may return NA (2022-08-20, Sat)

                 Changes in version 0.0.7 (2022-08-09)                  

  - add keytype slot for read.gson() and write.gson(). (2022-08-5, Wed)
  - add keytype slot for GSON object. (2022-07-13, Wed)