%->%                    Operator simplifying adding steps or filters to
                        Cohort and Source objects
.as_constructor         Attach proper class to filter constructor
.gen_id                 Generate random ID
.get_item               Return list of objects matching provided
                        condition.
.get_method             Get function definition
.if_value               Return default value if values are equal
Cohort                  R6 class representing Cohort object.
Source                  R6 class representing a data source
add_filter              Add filter definition
add_source              Add source to Cohort object.
add_step                Add filtering step definition
attrition               Show attrition plot.
binding-keys            Describe data relations with binding keys
code                    Return reproducible data filtering code.
cohort-methods          Cohort related methods
cohortBuilder-package   Create data source cohort
create-cohort           Create new 'Cohort' object
creating-filters        Define custom filter.
data_key                Define Source dataset key
description             Show source data or filter description
filter                  Define Cohort filter
filter-source-types     Filter Source types methods
filter-types            Filter types
get_data                Get step related data
get_state               Get Cohort configuration state.
hooks                   Cohort hooks.
librarian               Sample of library database
managing-cohort         Managing the Cohort object
managing-source         Managing the Source object
plot_data               Plot filter related Cohort data.
primary_keys            Define Source datasets primary keys
restore                 Restore Cohort object.
rm_filter               Remove filter definition
rm_step                 Remove filtering step definition
run                     Trigger data calculations.
set_source              Create Cohort source
source-layer            Source compatibility methods.
stat                    Get Cohort related statistics.
step                    Create filtering step
sum_up                  Sum up Cohort state.
tblist                  Create in memory tables connection
update_filter           Update filter definition
update_source           Update source in Cohort object.
