Represents a relation's between two cards or a card and a table_record.

Field : ObjectDescription
childId: ID Represents the child card identifier.
id: ID Represents the card relation identifier.
parentId: ID Represents the parent card identifier.
sourceId: ID Represents the source identifier.
sourceType: String Represents if the connection is through a PipeRelation or a Connection Field. The possible values are: - PipeRelation - Field