SessionManager

---

Calls

---

schedule_session_duration

Attributes

Name	Type
start_session	SessionIndex
duration	BlockNumberFor<T>

Python

call = substrate.compose_call(
    'SessionManager', 'schedule_session_duration', {
    'duration': 'u32',
    'start_session': 'u32',
}
)

---

Events

---

ScheduledSessionDuration

Attributes

Name	Type	Composition
block_number	BlockNumberFor<T>	u32
session_index	SessionIndex	u32
session_duration	BlockNumberFor<T>	u32

---

Storage functions

---

DurationOffset

Python

result = substrate.query(
    'SessionManager', 'DurationOffset', []
)

Return value

'u32'

---

SessionDuration

Python

result = substrate.query(
    'SessionManager', 'SessionDuration', []
)

Return value

'u32'

---

SessionDurationChanges

Python

result = substrate.query(
    'SessionManager', 'SessionDurationChanges', ['u32']
)

Return value

('u32', 'u32')

---

Errors

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EstimateNextSessionFailed

---

InvalidDuration

---

InvalidSession

---