CredentialSet

class cometa.proposal_procedures.credential_set.CredentialSet(ptr=None)[source]

Bases: Set[Credential]

Represents a set of credentials.

This collection type is used in governance actions to specify sets of committee member credentials that should be added or removed.

__init__(ptr=None)[source]

Initializes a new CredentialSet.

Parameters:: ptr – Optional internal pointer to an existing credential set. If None, creates a new empty set.
Raises:: CardanoError – If initialization fails or ptr is invalid.
Return type:: None

__enter__()[source]

Enters the context manager.

Return type:: CredentialSet

__exit__(exc_type, exc_val, exc_tb)[source]

Exits the context manager.

Return type:: None

__repr__()[source]

Returns a string representation of the credential set.

Return type:: str

classmethod from_cbor(reader)[source]

Deserializes a CredentialSet from CBOR data.

Parameters:: reader (CborReader) – A CborReader positioned at the credential set data.
Returns:: A new CredentialSet deserialized from the CBOR data.
Raises:: CardanoError – If deserialization fails.
Return type:: CredentialSet

classmethod from_list(credentials)[source]

Creates a CredentialSet from an iterable of Credential objects.

Parameters:: credentials (Iterable[Credential]) – An iterable of Credential objects.
Returns:: A new CredentialSet containing all the credentials.
Raises:: CardanoError – If creation fails.
Return type:: CredentialSet

to_cbor(writer)[source]

Serializes the credential set to CBOR format.

Parameters:: writer (CborWriter) – A CborWriter to write the serialized data to.
Raises:: CardanoError – If serialization fails.
Return type:: None

add(credential)[source]

Adds a credential to the set.

Parameters:: credential (Credential) – The credential to add.
Raises:: CardanoError – If addition fails.
Return type:: None

get(index)[source]

Retrieves a credential at the specified index.

Parameters:

index (int) – The index of the credential to retrieve.

Returns:

The Credential at the specified index.

Raises:

CardanoError – If retrieval fails.
IndexError – If index is out of bounds.

Return type:

Credential

__len__()[source]

Returns the number of credentials in the set.

Return type:: int

__iter__()[source]

Iterates over all credentials in the set.

Return type:: Iterator[Credential]

__getitem__(index)[source]

Gets a credential by index using bracket notation.

Parameters:: index (int)
Return type:: Credential

__bool__()[source]

Returns True if the set is not empty.

Return type:: bool

to_cip116_json(writer)[source]

Serializes this object to CIP-116 compliant JSON.

Parameters:: writer (JsonWriter) – The JsonWriter to write the JSON to.
Raises:: CardanoError – If serialization fails.
Return type:: None

__contains__(item)[source]

Checks if an item is in the set.

Parameters:: item (object)
Return type:: bool

isdisjoint(other)[source]

Returns True if the set has no elements in common with other.

Parameters:: other (Iterable[Credential]) – Another iterable to compare with.
Returns:: True if the sets are disjoint.
Return type:: bool