flag

type Choice struct {
	// Populated from the command line.
	Choice *string

	// All possible values allowed to appear in Choice.
	AllowedValues []string
}

type ConstrainedValue interface {
	flag.Value

	// ValidValuesDescription provides a description of the value
	// values for this ContrainedValue suiteable for use in flag
	// usage text.
	ValidValuesDescription() string
}

type FlagSet interface {
	// Scope creates a new scoped FlagSet. The name of any flag
	// added to the new FlagSet is prefixed with the given
	// prefix. In the flag's uage, the expression "{{NAME}}", is
	// replaced with the given description.
	Scope(prefix, description string) FlagSet

	// GetScope retrieves this FlagSet's scoping prefix, including
	// a trailing period.
	GetScope() string

	// Unwrap returns the flag.FlagSet underlying this FlagSet.
	Unwrap() *flag.FlagSet

	// Var defines a flag with the specified name and usage. The
	// flag's type and value are derived from value. See
	// flag.FlagSet.Var for more information.
	Var(value flag.Value, name string, usage string)

	// HostPortVar defines a HostPort flag with the specified name,
	// default value, and usage string. The argument hp points to a
	// HostPort variable in which to store the value of the flag.
	// The flag accepts "host:port" strings.
	HostPortVar(hp *HostPort, name string, value HostPort, usage string)

	// HostPort defines a HostPort flag with the specified name,
	// default value, and usage string. The return value is the
	// address of a HostPort variable that stores the value of the
	// flag. The flag accepts "host:port" strings.
	HostPort(name string, value HostPort, usage string) *HostPort

	// BoolVar defines a bool flag with the specified name,
	// default value, and usage. The flag's value is stored in p.
	BoolVar(p *bool, name string, value bool, usage string)

	// Bool defines a bool flag with the specified name,
	// default value, and usage. The return value is a pointer
	// to a variable that stores the flag's value.
	Bool(name string, value bool, usage string) *bool

	// DurationVar defines a time.Duration flag with the specified name,
	// default value, and usage. The flag's value is stored in p.
	DurationVar(p *time.Duration, name string, value time.Duration, usage string)

	// Duration defines a time.Duration flag with the specified name,
	// default value, and usage. The return value is a pointer
	// to a variable that stores the flag's value.
	Duration(name string, value time.Duration, usage string) *time.Duration

	// Float64Var defines a float64 flag with the specified name,
	// default value, and usage. The flag's value is stored in p.
	Float64Var(p *float64, name string, value float64, usage string)

	// Float64 defines a float64 flag with the specified name,
	// default value, and usage. The return value is a pointer
	// to a variable that stores the flag's value.
	Float64(name string, value float64, usage string) *float64

	// IntVar defines a int flag with the specified name,
	// default value, and usage. The flag's value is stored in p.
	IntVar(p *int, name string, value int, usage string)

	// Int defines a int flag with the specified name,
	// default value, and usage. The return value is a pointer
	// to a variable that stores the flag's value.
	Int(name string, value int, usage string) *int

	// Int64Var defines a int64 flag with the specified name,
	// default value, and usage. The flag's value is stored in p.
	Int64Var(p *int64, name string, value int64, usage string)

	// Int64 defines a int64 flag with the specified name,
	// default value, and usage. The return value is a pointer
	// to a variable that stores the flag's value.
	Int64(name string, value int64, usage string) *int64

	// StringVar defines a string flag with the specified name,
	// default value, and usage. The flag's value is stored in p.
	StringVar(p *string, name string, value string, usage string)

	// String defines a string flag with the specified name,
	// default value, and usage. The return value is a pointer
	// to a variable that stores the flag's value.
	String(name string, value string, usage string) *string

	// UintVar defines a uint flag with the specified name,
	// default value, and usage. The flag's value is stored in p.
	UintVar(p *uint, name string, value uint, usage string)

	// Uint defines a uint flag with the specified name,
	// default value, and usage. The return value is a pointer
	// to a variable that stores the flag's value.
	Uint(name string, value uint, usage string) *uint

	// Uint64Var defines a uint64 flag with the specified name,
	// default value, and usage. The flag's value is stored in p.
	Uint64Var(p *uint64, name string, value uint64, usage string)

	// Uint64 defines a uint64 flag with the specified name,
	// default value, and usage. The return value is a pointer
	// to a variable that stores the flag's value.
	Uint64(name string, value uint64, usage string) *uint64
}

type FromEnv interface {
	// Prefix returns the environment key prefix, eg "SOME_PREFIX_"
	Prefix() string

	// Fill parses all registered flags in the FlagSet, and if they are not already
	// set it attempts to set their values from environment variables. Environment
	// variables take the name of the flag but are UPPERCASE, have the given prefix,
	// and non-alphanumeric+underscore chars are replaced by underscores.
	//
	// For example:
	//  some-flag -> SOME_PREFIX_SOME_FLAG
	//
	// the provided map[string]string is also populated with the keys and values
	// added to the FlagSet.
	Fill() error

	// Filled returns a map of the environment keys and values for flags currently
	// filled from the environment. Values for flags marked sensitive will be
	// redacted
	Filled() map[string]string

	// AllFlags returns a slice containing all Flags in the underlying Flagset
	AllFlags() []*flag.Flag
}

type HostPort struct {
	// contains filtered or unexported fields
}

type MockFromEnv struct {
	// contains filtered or unexported fields
}

type MockFromEnvMockRecorder struct {
	// contains filtered or unexported fields
}

type Strings struct {
	// Populated from the command line.
	Strings []string

	// All possible values allowed to appear in Strings. An empty
	// slice means any value is allowed in Strings.
	AllowedValues []string

	// Delimiter used to parse the string from the command line.
	Delimiter string
	// contains filtered or unexported fields
}

type TestFlagSet interface {
	FlagSet

	// Parse invokes the Parse function of the underlying
	// flag.FlagSet as a convenience for tests.
	Parse(args []string) error
}

type Timestamp struct {
	Value time.Time
}