Changes to Retrieve trading pathways

added the optional property error/authorization to the response with the default status

added the optional property min_buy_usd to the response with the 200 status

added the optional property min_buy_usd_view to the response with the 200 status

added the new enum value USTB to the query request parameter symbol

added the new enum value YLDS to the query request parameter symbol

api tag customer-session added

added the optional property cash_subscription to the response with the 200 status

added the optional property error/api_client_id to the response with the default status

added the optional property express_buy/settlement_estimate_seconds to the response with the 200 status

added the optional property express_settlement/settlement_duration_minutes to the response with the 200 status

added the optional property standard_settlement/settlement_duration_minutes to the response with the 200 status

added the optional property express_settlement to the response with the 200 status

added the optional property standard_settlement to the response with the 200 status

endpoint added