# Functions
New initializes a new PostgreSQL connection pool and returns a Service interface.
# Structs
PaymentState represents the state of a user interacting with the bot for payments.
SnetOrganization represents an organization in the Snet system.
SnetOrgGroup represents a group within an organization in the Snet system.
SnetService represents a service in the Snet system.
# Interfaces
Service defines the interface for database operations related to Snet organizations, services, and payment states.