# Functions
DataSource returns a configurable builder for a file-based data source.
# Constants
DuplicateKeysFail is an option for DataSourceBuilder.DuplicateKeysHandling, meaning that data loading should fail if keys are duplicated across files.
DuplicateKeysIgnoreAllButFirst is an option for DataSourceBuilder.DuplicateKeysHandling, meaning that if keys are duplicated across files the first occurrence will be used.
# Structs
DataSourceBuilder is a builder for configuring the file-based data source.
# Type aliases
DuplicateKeysHandling is a parameter type used with DataSourceBuilder.DuplicateKeysHandling.
ReloaderFactory is a function type used with DataSourceBuilder.Reloader, to specify a mechanism for detecting when data files should be reloaded.