# Functions
Flags validates flags for the given command.
# Variables
ErrInvalidBasicAuthCredentials occurs when only one of basic-auth-user or basic-auth-password is configured.
ErrInvalidKeypair means that a TLS keypair is required but only one of the key or certificate was provided.
ErrTLSRequired means that Transport Layer Security (TLS) is required but not set.
FlagFuncs is a combination of multiple flag validation functions.
# Type aliases
FlagFunc is a function that validates a flag or set of flags of cmd.