Origin must be either ForceOrigin or Signed and the sender should be the Admin of the
collection.
If the origin is Signed, then funds of signer are reserved according to the formula:
MetadataDepositBase + DepositPerByte * data.len taking into
account any already reserved funds.
collection: The identifier of the collection whose item's metadata to set.
item: The identifier of the item whose metadata to set.
data: The general information of this item. Limited in length by StringLimit.
Set the metadata for an item.
Origin must be either
ForceOriginor Signed and the sender should be the Admin of thecollection.If the origin is Signed, then funds of signer are reserved according to the formula:
MetadataDepositBase + DepositPerByte * data.lentaking into account any already reserved funds.collection: The identifier of the collection whose item's metadata to set.item: The identifier of the item whose metadata to set.data: The general information of this item. Limited in length byStringLimit.Emits
ItemMetadataSet.Weight:
O(1)