[API Reference](../README.md) > [ProposeToAddModifySchemeParams](../interfaces/ProposeToAddModifySchemeParams.md)



# Interface: ProposeToAddModifySchemeParams


## Properties
<a id="avatar"></a>

###  avatar

**●  avatar**:  *[Address](../#Address)* 

*Defined in [wrappers/schemeRegistrar.ts:312](https://github.com/daostack/arc.js/blob/f343aa24/lib/wrappers/schemeRegistrar.ts#L312)*



avatar address




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<a id="permissions"></a>

### «Optional» permissions

**●  permissions**:  *[SchemePermissions](../enums/SchemePermissions.md)⎮`null`* 

*Defined in [wrappers/schemeRegistrar.ts:336](https://github.com/daostack/arc.js/blob/f343aa24/lib/wrappers/schemeRegistrar.ts#L336)*



Optionally supply values from SchemePermissions or DefaultSchemePermissions.

This value is manditory for non-Arc schemes.

For Arc schemes the default is taken from DefaultSchemePermissions for the scheme given by schemeName.




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<a id="schemeAddress"></a>

### «Optional» schemeAddress

**●  schemeAddress**:  *[Address](../#Address)* 

*Defined in [wrappers/schemeRegistrar.ts:318](https://github.com/daostack/arc.js/blob/f343aa24/lib/wrappers/schemeRegistrar.ts#L318)*



Optional scheme address. Supply this if you are submitting a non-Arc scheme or wish to use a different Arc scheme than the default. In the latter case, you must also supply the schemeName.




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<a id="schemeName"></a>

### «Optional» schemeName

**●  schemeName**:  *`string`⎮`null`* 

*Defined in [wrappers/schemeRegistrar.ts:323](https://github.com/daostack/arc.js/blob/f343aa24/lib/wrappers/schemeRegistrar.ts#L323)*



Scheme name, like "SchemeRegistrar" or "ContributionReward". Not required if you are registering a non-arc scheme.




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<a id="schemeParametersHash"></a>

###  schemeParametersHash

**●  schemeParametersHash**:  *`string`* 

*Defined in [wrappers/schemeRegistrar.ts:327](https://github.com/daostack/arc.js/blob/f343aa24/lib/wrappers/schemeRegistrar.ts#L327)*



Fash of scheme parameters. These must be already registered with the new scheme.




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