MAX_LINES_PER_REQUEST   Maximum number of line requested
apply_types             Convert column-type according to column_name
build_filter            Build filter from tribble
build_query             Build the query
get_column_type         Convert column-type according to column_name
get_login_token         Fetch login token
get_test_credentials    get_test_credentials getting credentials for
                        testing
is_column_a_metric      is_column_a_metric Checks if column_name
                        indicates numeric values Uses
                        https://developers.piwik.pro/en/latest/custom_reports/columns.html
release_questions       Ask package specific question during
                        release-process
send_query              Send the query and receive the result
send_query_single       Send the query and receive the result
