There is a command group 'az_synapse_role_assignment'. This group of commands could 'manage synapse s role assignments'. The group of commands has global parameter '--debug' which means 'Increase logging verbosity to show all debug logs.'. The group of commands has global parameter '--help -h' which means 'Show this help message and exit.'. The group of commands has global parameter '--only-show-errors' which means 'Only show errors, suppressing warnings.'. The group of commands has global parameter '--output -o' which means 'Output format.'. The group of commands has global parameter '--query' which means 'JMESPath query string. See <a href="http://jmespath.org/">http://jmespath.org/</a> for more information and examples.'. The group of commands has global parameter '--subscription' which means 'Name or ID of subscription. You can configure the default subscription using `az account set -s NAME_OR_ID`.'. The group of commands has global parameter '--verbose' which means 'Increase logging verbosity. Use --debug for full debug logs.'. This group contains a child command 'az_synapse_role_assignment_create'.The syntax is: az synapse role assignment create --role
                                  --workspace-name
                                  [--assignee]
                                  [--assignee-object-id]
                                  [--assignee-principal-type {group, serviceprincipal, user}]
                                  [--assignment-id]
                                  [--item]
                                  [--item-type {bigdatapools, credentials, integrationruntimes, linkedservices}]
                                  [--scope]. The 1th example of the child command would be to use it to 'create a role assignment using service principal name', the syntax is: az synapse role assignment create --workspace-name testsynapseworkspace \
--role "Synapse Administrator" --assignee sp_name. The 2th example of the child command would be to use it to 'create a role assignment using user principal name', the syntax is: az synapse role assignment create --workspace-name testsynapseworkspace \
--role "Synapse Administrator" --assignee username@contoso.com. The 3th example of the child command would be to use it to 'create a role assignment using objectid of the user  group or service principal', the syntax is: az synapse role assignment create --workspace-name testsynapseworkspace \
--role "Synapse Administrator" --assignee 00000000-0000-0000-0000-000000000000. The 4th example of the child command would be to use it to 'create a role assignment at scope', the syntax is: az synapse role assignment create --workspace-name testsynapseworkspace \
--scope "workspaces/{workspaceName}" --role "Synapse Administrator" --assignee username@contoso.com. The 5th example of the child command would be to use it to 'create a role assignment at scope that combination of item type and item name', the syntax is: az synapse role assignment create --workspace-name testsynapseworkspace \
--item-type "bigDataPools" --item "bigDataPoolName" --role "Synapse Administrator" \
--assignee username@contoso.com. The 6th example of the child command would be to use it to 'when you are a user with permission to manage azure rbac role assignment on the workspace but not a synapse administrator  please create role assigment by  role roleid  the reason for this is   when you try to add a  synapse administrator  role  the cmdlet needs to get the role id from the role name which requires workspace read permission  which the current user does not have', the syntax is: az synapse role assignment create \
--workspace-name testsynapseworkspace \
--role "6e4bf58a-b8e1-4cc3-bbf9-d73143322b78" \
--assignee username@contoso.com. The parameter '--role' is required. It is used to the role name/id that is assigned to the principal.. The parameter '--workspace-name' is required. It is used to the workspace name.. The parameter '--assignee' is optional. represent a user or service principal. supported format: object id, user sign-in name, or service principal name.. The parameter '--assignee-object-id' is optional. use this parameter instead of '--assignee' to bypass graph api invocation in case of insufficient privileges. this parameter only works with object ids for users, groups, service principals, and managed identities. for managed identities use the principal id. for service principals, use the object id and not the app id.. The parameter '--assignee-principal-type --assignee-type' is optional. use with --assignee-object-id to avoid errors caused by propagation latency in aad graph.. The parameter '--assignment-id' is optional. custom role assignment id in guid format, if not specified, assignment id will be randomly generated.. The parameter '--item' is optional. item granted access in the workspace. using with --item-type to combine the scope of assignment.. The parameter '--item-type' is optional. item type granted access in the workspace. using with --item to combine the scope of assignment.. The parameter '--scope' is optional. a scope defines the resources or artifacts that the access applies to. synapse supports hierarchical scopes. permissions granted at a higher-level scope are inherited by objects at a lower level. in synapse rbac, the top-level scope is a workspace. assigning a role with workspace scope grants permissions to all applicable objects in the workspace.. 