The function discover_graph_workspace in the hana_ml.graph.discovery module provides detailed information about a specific Graph Workspace in the SAP HANA Database, returning a dictionary with workspace attributes such as schema name, workspace name, edge and vertex details.
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Here is a Python code template for the `discover_graph_workspace` function:

```python
from hana_ml.dataframe import ConnectionContext
from hana_ml.graph.discovery import discover_graph_workspace

# Create a connection to the HANA database
connection_context = ConnectionContext(address='<hana_address>',
                                       port='<hana_port>',
                                       user='<hana_user>',
                                       password='<hana_password>')

# Specify the workspace name
workspace_name = '<workspace_name>'

# Specify the schema (optional)
schema = '<schema>'

# Discover the graph workspace
workspace_info = discover_graph_workspace(connection_context=connection_context,
                                          workspace_name=workspace_name,
                                          schema=schema)

# Print the workspace attributes
print(workspace_info)
```

Please replace `<hana_address>`, `<hana_port>`, `<hana_user>`, `<hana_password>`, `<workspace_name>`, and `<schema>` with your actual values. If you don't want to specify a schema, you can remove the `schema` argument from the `discover_graph_workspace` function call.