[issue-426] update model: NamespaceMap

to a5e7cebcd2c7094f89fb7416be16803d67716402

Signed-off-by: Armin Tänzer <armin.taenzer@tngtech.com>

Author: armintaenzertng

README.md

@@ -50,7 +50,7 @@ additional installation of optional dependencies
 * Serialize to JSON-LD
 
 See [Quickstart to SPDX 3.0](#quickstart-to-spdx-30) below.  
-The implementation is based on the descriptive markdown files in the repository https://github.com/spdx/spdx-3-model (latest commit: cb39f85bed80d432acd2c177fb6480efb8fc73ae).
+The implementation is based on the descriptive markdown files in the repository https://github.com/spdx/spdx-3-model (latest commit: a5e7cebcd2c7094f89fb7416be16803d67716402).
 
 
 # Installation

src/spdx_tools/spdx3/model/namespace_map.py

@@ -9,8 +9,8 @@
 
 @dataclass_with_properties
 class NamespaceMap:
-    prefix: Optional[str] = None
-    namespace: Optional[str] = None  # anyURI
+    prefix: str
+    namespace: str  # anyURI
 
-    def __init__(self, prefix: Optional[str] = None, namespace: Optional[str] = None):
+    def __init__(self, prefix: str, namespace: str):
         check_types_and_set_values(self, locals())