# Functions
GetPageIndex - Get paged page index.
GetPageSize - Get the page size of the page (up to 50).
GetPaginationParam - Get paging query parameters.
GetToken - Get user token.
GetTraceID - Get tracking ID.
GetUserID - Get user ID.
GetUserUUID - Get user UUID.
NewContext - Package context entry.
ParseJSON - Parse request JSON.
ResError - Response error.
ResJSON - Respond to JSON data.
ResList - Response list data.
ResOK - Respond OK.
ResPage - Response paging data.
ResSuccess - Successful response.
SetUserID - Set user ID.
SetUserUUID - Set user UUID.
# Constants
ResBodyKey - The key in the storage context (response to the Body data).
TraceIDKey - Key in storage context (tracking ID).
UserIDKey - Key in the storage context (user ID).
UserUUIDKey - Key in the storage context (user UUID).