accountMetadataAccountExists

This is used to match and include documents where a value exists for the accountMetadata.account property. \\ Only true or false boolean values are accepted. A mix of operators with basic values is not supported. If accountMetadata.account.exists is provided together with plain values for account, this exists operator is ignored. \\ Example: To filter all documents with accountMetadata.account not set, use accountMetadata.account.exists=false