# Functions
Close close gorm db.
Init mysql.
InitTidb init tidb.
WithConnMaxLifetime set conn max lifetime.
WithEnableForeignKey use foreign keys.
WithEnableTrace use trace.
WithGormPlugin setting gorm plugin.
WithLogging set log sql, If l=nil, the gorm log library will be used.
WithLogRequestIDKey log request id.
WithMaxIdleConns set max idle conns.
WithMaxOpenConns set max open conns.
WithRWSeparation setting read-write separation.
WithSlowThreshold Set sql values greater than the threshold.
# Type aliases
Option set the mysql options.